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Finding the Third Proportional to 138,601.13 and 291,691.13

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Solution

The third proportional to 138,601.13 and 291,691.13 is: 613,874.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,601.13 : 291,691.13 = 291,691.13 : x
  2. Step 2: Convert to fraction form
    138,601.13/291,691.13 = 291,691.13/x
  3. Step 3: Cross multiply
    138,601.13x = 291,691.13 × 291,691.13
  4. Step 4: Simplify right side
    138,601.13x = 85,083,712,403.77
  5. Step 5: Solve for x
    x = 85,083,712,403.77/138,601.13
  6. Step 6: Final answer
    x = 613,874.62

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.