Simple Definition of proportion

: an amount that is a part of a whole

: the relationship that exists between the size, number, or amount of two things

: the correct or appropriate relationship between the size, shape, and position of the different parts of something
Full Definition of proportion
1 : harmonious relation of parts to each other or to the whole : balance, symmetry
2 a : proper or equal share <each did her proportion of the work> b : quota, percentage
3 : the relation of one part to another or to the whole with respect to magnitude, quantity, or degree : ratio
5 : a statement of equality between two ratios in which the first of the four terms divided by the second equals the third divided by the fourth (as in 4/2=10/5) — compare extreme 1b, mean 1c
: proportional 1
Examples of proportion
His ears were drawn out of proportion with his head.
The size of the window seems out of proportion with the height of the wall.
Origin of proportion
Middle English proporcion, from AngloFrench, from Latin proportion, proportio, from pro for + portion, portio portion — more at for
First Known Use: 14th century
Other Mathematics and Statistics Terms
Rhymes with proportion
14th Century
First Known Use of proportion
14th century
Learn More about proportion

Thesaurus: All synonyms and antonyms for "proportion" Spanish Central: Translation of "proportion" Nglish: Translation of "proportion" for Spanish speakers Britannica English: Translation of "proportion" for Arabic speakers
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