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Finding the Third Proportional to 138,748 and 327,424

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Solution

The third proportional to 138,748 and 327,424 is: 772,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,748 : 327,424 = 327,424 : x
  2. Step 2: Convert to fraction form
    138,748/327,424 = 327,424/x
  3. Step 3: Cross multiply
    138,748x = 327,424 × 327,424
  4. Step 4: Simplify right side
    138,748x = 107,206,475,776
  5. Step 5: Solve for x
    x = 107,206,475,776/138,748
  6. Step 6: Final answer
    x = 772,670.42

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.