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Finding the Third Proportional to 99,029 and 213,839

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Solution

The third proportional to 99,029 and 213,839 is: 461,754.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,029 : 213,839 = 213,839 : x
  2. Step 2: Convert to fraction form
    99,029/213,839 = 213,839/x
  3. Step 3: Cross multiply
    99,029x = 213,839 × 213,839
  4. Step 4: Simplify right side
    99,029x = 45,727,117,921
  5. Step 5: Solve for x
    x = 45,727,117,921/99,029
  6. Step 6: Final answer
    x = 461,754.82

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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.