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Finding the Third Proportional to 417.50 and 614.13

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Solution

The third proportional to 417.50 and 614.13 is: 903.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    417.50 : 614.13 = 614.13 : x
  2. Step 2: Convert to fraction form
    417.50/614.13 = 614.13/x
  3. Step 3: Cross multiply
    417.50x = 614.13 × 614.13
  4. Step 4: Simplify right side
    417.50x = 377,149.52
  5. Step 5: Solve for x
    x = 377,149.52/417.50
  6. Step 6: Final answer
    x = 903.35

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.