High Quality Content by WIKIPEDIA articles! Proportion is the relation between elements and a whole. Proportion is a correspondence among the measures of the members of an entire work, and of the whole to a certain part selected as standard. From this result the principles of symmetry. Without symmetry and proportion there can be no principles in the design of any temple; that is, if there is no precise relation between its members as in the case of those of a well shaped man. Vitruvius, The Ten Books of Architecture.