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Finding the Third Proportional to 63,724 and 138,626

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Solution

The third proportional to 63,724 and 138,626 is: 301,568.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,724 : 138,626 = 138,626 : x
  2. Step 2: Convert to fraction form
    63,724/138,626 = 138,626/x
  3. Step 3: Cross multiply
    63,724x = 138,626 × 138,626
  4. Step 4: Simplify right side
    63,724x = 19,217,167,876
  5. Step 5: Solve for x
    x = 19,217,167,876/63,724
  6. Step 6: Final answer
    x = 301,568.76

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.