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Finding the Third Proportional to 99,098 and 217,876

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Solution

The third proportional to 99,098 and 217,876 is: 479,020.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,098 : 217,876 = 217,876 : x
  2. Step 2: Convert to fraction form
    99,098/217,876 = 217,876/x
  3. Step 3: Cross multiply
    99,098x = 217,876 × 217,876
  4. Step 4: Simplify right side
    99,098x = 47,469,951,376
  5. Step 5: Solve for x
    x = 47,469,951,376/99,098
  6. Step 6: Final answer
    x = 479,020.28

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.