Definition of proportional
: a number or quantity in a proportion
14th Century
First Known Use of proportional
14th century
Other Mathematics and Statistics Terms
proportional
Simple 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
Full Definition of proportional
1 a : 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>
Examples of proportional in a sentence
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>
15th Century
First Known Use of proportional
15th century
Other Mathematics and Statistics Terms
PROPORTIONAL Defined for Kids
proportional
playDefinition of proportional for Students
: having a direct relationship to something in size, number, or amount <The children received allowances proportional to their ages.>
proportionally
adverbLearn More about proportional

Thesaurus: All synonyms and antonyms for proportional Spanish Central: Translation of proportional Nglish: Translation of proportional for Spanish speakers Britannica English: Translation of proportional for Arabic speakers
Seen and Heard
What made you want to look up proportional? Please tell us where you read or heard it (including the quote, if possible).