How to use SSS proportionality to show two triangles are similar

The video tutorial explains how to determine if two triangles are similar by comparing their side lengths. It introduces the concept of similar triangles and the importance of proportionality. The instructor guides through identifying corresponding sides and calculating their proportions. By simplifying these ratios, the video demonstrates how to prove that the triangles are similar using the side-side-side proportionality rule. The tutorial concludes by affirming the similarity of triangles based on equal proportions.

Explain the concept of proportionality in the context of triangle similarity.

What conclusion can be drawn if three sides of two triangles are proportional?