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Finding the Third Proportional to 223,839 and 347,105

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Solution

The third proportional to 223,839 and 347,105 is: 538,252.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,839 : 347,105 = 347,105 : x
  2. Step 2: Convert to fraction form
    223,839/347,105 = 347,105/x
  3. Step 3: Cross multiply
    223,839x = 347,105 × 347,105
  4. Step 4: Simplify right side
    223,839x = 120,481,881,025
  5. Step 5: Solve for x
    x = 120,481,881,025/223,839
  6. Step 6: Final answer
    x = 538,252.41

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.