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Finding the Third Proportional to 87,508 and 178,704

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Solution

The third proportional to 87,508 and 178,704 is: 364,939.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,508 : 178,704 = 178,704 : x
  2. Step 2: Convert to fraction form
    87,508/178,704 = 178,704/x
  3. Step 3: Cross multiply
    87,508x = 178,704 × 178,704
  4. Step 4: Simplify right side
    87,508x = 31,935,119,616
  5. Step 5: Solve for x
    x = 31,935,119,616/87,508
  6. Step 6: Final answer
    x = 364,939.43

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.