Finding the Third Proportional to 71 and 191.50
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Solution
The third proportional to 71 and 191.50 is: 516.51
Step by Step Solution
- Step 1: Write the proportion equation
71 : 191.50 = 191.50 : x - Step 2: Convert to fraction form
71/191.50 = 191.50/x - Step 3: Cross multiply
71x = 191.50 × 191.50 - Step 4: Simplify right side
71x = 36,672.25 - Step 5: Solve for x
x = 36,672.25/71 - Step 6: Final answer
x = 516.51
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Why These Related Problems?
These problems maintain the same ratio (2.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.