1

proportion

noun pro·por·tion \ prə-ˈpȯr-shən \
Updated on: 19 Nov 2017

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
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
in proportion

Examples of proportion in a Sentence

  1. His ears were drawn out of proportion with his head.

  2. The size of the window seems out of proportion with the height of the wall.

Recent Examples of proportion from the Web

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

Origin and Etymology of proportion

Middle English proporcion, from Anglo-French, from Latin proportion-, proportio, from pro for + portion-, portio portion — more at for

Other Mathematics and Statistics Terms


2

proportion

verb

Definition of proportion

proportioned; proportioning play \prə-ˈpȯr-sh(ə-)niŋ\
transitive verb
1 :to adjust (a part or thing) in size relative to other parts or things
2 :to make the parts of harmonious or symmetrical

Recent Examples of proportion from the Web

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

First Known Use of proportion

14th century



PROPORTION Defined for English Language Learners

proportion

noun

Definition of proportion for English Language Learners

  • : 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


PROPORTION Defined for Kids

proportion

noun pro·por·tion \ prə-ˈpȯr-shən \

Definition of proportion for Students

1 :the size, number, or amount of one thing or group of things as compared to that of another thing or group of things
  • The proportion of boys to girls in our class is two to one.
2 :a balanced or pleasing arrangement
  • The oversize garage is out of proportion with the house.
3 :a statement of the equality of two ratios (as ⁴/₂ = ¹⁰/₅)
4 :a fair or just share
  • I did my proportion of the work.
5 :size, shape, or extent of something
  • It was a crisis of large proportions.


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