see-saw

The inverse ratio of heft of content to height of rhetoric.

measure for measure

Most poems fail based on a simple mixed measurement ratio: the material (subject, idea, story, substance) weighs less than its length in lines.

low coverage area

A high ratio of white space to printed text. [Scientific definition of a poem.]

the sublime ratio

When evaluating art, try to measure the ratio of surface to essence. The lower the value the better the art.