Finding the Third Proportional to 131 and 156
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Solution
The third proportional to 131 and 156 is: 185.77
Step by Step Solution
- Step 1: Write the proportion equation
131 : 156 = 156 : x - Step 2: Convert to fraction form
131/156 = 156/x - Step 3: Cross multiply
131x = 156 × 156 - Step 4: Simplify right side
131x = 24,336 - Step 5: Solve for x
x = 24,336/131 - Step 6: Final answer
x = 185.77
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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.