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Finding the Third Proportional to 87,528 and 187,511

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Solution

The third proportional to 87,528 and 187,511 is: 401,704.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,528 : 187,511 = 187,511 : x
  2. Step 2: Convert to fraction form
    87,528/187,511 = 187,511/x
  3. Step 3: Cross multiply
    87,528x = 187,511 × 187,511
  4. Step 4: Simplify right side
    87,528x = 35,160,375,121
  5. Step 5: Solve for x
    x = 35,160,375,121/87,528
  6. Step 6: Final answer
    x = 401,704.31

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.