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Finding the Third Proportional to 147,959 and 319,567

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Solution

The third proportional to 147,959 and 319,567 is: 690,211.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,959 : 319,567 = 319,567 : x
  2. Step 2: Convert to fraction form
    147,959/319,567 = 319,567/x
  3. Step 3: Cross multiply
    147,959x = 319,567 × 319,567
  4. Step 4: Simplify right side
    147,959x = 102,123,067,489
  5. Step 5: Solve for x
    x = 102,123,067,489/147,959
  6. Step 6: Final answer
    x = 690,211.93

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.