Finding the Third Proportional to 180 and 215
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Solution
The third proportional to 180 and 215 is: 256.81
Step by Step Solution
- Step 1: Write the proportion equation
180 : 215 = 215 : x - Step 2: Convert to fraction form
180/215 = 215/x - Step 3: Cross multiply
180x = 215 × 215 - Step 4: Simplify right side
180x = 46,225 - Step 5: Solve for x
x = 46,225/180 - Step 6: Final answer
x = 256.81
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These problems maintain the same ratio (1.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.