proportional

noun
pro·​por·​tion·​al | \ prə-ˈpȯr-shnəl, -shə-nᵊl\

Definition of proportional 

(Entry 1 of 2)

: a number or quantity in a proportion

proportional

adjective

Definition of proportional (Entry 2 of 2)

1a : corresponding in size, degree, or intensity
b : having the same or a constant ratio corresponding sides of similar triangles are proportional
2 : regulated or determined in size or degree with reference to proportions a proportional system of immigration quotas

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Other Words from proportional

Adjective

proportionality \ prə-​ˌpȯr-​shə-​ˈna-​lə-​tē \ noun
proportionally \ prə-​ˈpȯr-​shnə-​lē , -​shə-​nᵊl-​ē \ adverb

Synonyms & Antonyms for proportional

Synonyms: Adjective

commensurable, commensurate, proportionate

Antonyms: Adjective

disproportionate

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Examples of proportional in a Sentence

Adjective

The features of the face in the drawing are proportional. the Web site's popularity increased exponentially, resulting in a proportional increase in advertising revenue

Recent Examples on the Web: Adjective

The amount of waste your dog produces is proportional to the amount of indigestible content in his food. Marygrace Taylor, Good Housekeeping, "6 Things Your Dog's Poop Can Tell You About Its Health," 11 July 2018 So don't overwhelm your face, advises Wexler, who says your goal is to choose frames that are proportional. Amanda Greene, Woman's Day, "Sunglasses for Every Face Shape," 9 July 2010 Though price to earnings ratios have fallen in the U.S., the sharpest proportional declines have come from Europe and China. Mike Bird, WSJ, "The Great Cheapening of 2018: Global Stock Valuations Now at Five-Year Lows," 12 Dec. 2018 The city spends 9 to 11 percent of its budget on Palestinian neighborhoods, not proportional to their population, said Meir Margalit, a dovish former Jerusalem city council member. Tia Goldenberg, Fox News, "Israeli east Jerusalem plan gets cool Palestinian reception," 20 July 2018 Ferrell seemed to live his life as if to refute the notion that academic success is proportional to the narrowness of one’s field of study. James Grant, WSJ, "Robert H. Ferrell, a Historian of Breadth and Clarity," 17 Aug. 2018 Newton’s Law of Universal Gravitation tells us that a planet’s gravitational force is proportional to its mass. Meg Neal, Popular Mechanics, "We’ve Been Wrong Before: The Expanding Earth Theory," 3 Aug. 2018 This equation says that the square of the angular velocity should be proportional to one divided by the length of the string. Rhett Allain, WIRED, "The Physics of Swinging a Mass on a String for Fun," 9 May 2018 Results based on the full sample have a margin of sampling error of plus or minus three each state are proportional to the number of voters in each state. Fox News, "Fox News Poll 07/13/18," 12 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'proportional.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of proportional

Noun

14th century, in the meaning defined above

Adjective

15th century, in the meaning defined at sense 1a

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Time Traveler for proportional

The first known use of proportional was in the 14th century

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More Definitions for proportional

proportional

adjective

English Language Learners Definition of proportional

: having a size, number, or amount that is directly related to or appropriate for something

: having parts that are the correct or appropriate size in relation to each other

proportional

adjective
pro·​por·​tion·​al | \ prə-ˈpȯr-shə-nəl \

Kids Definition of proportional

: having a direct relationship to something in size, number, or amount The children received allowances proportional to their ages.

Other Words from proportional

proportionally adverb

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