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Finding the Third Proportional to 87,868 and 207,320

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Solution

The third proportional to 87,868 and 207,320 is: 489,160.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,868 : 207,320 = 207,320 : x
  2. Step 2: Convert to fraction form
    87,868/207,320 = 207,320/x
  3. Step 3: Cross multiply
    87,868x = 207,320 × 207,320
  4. Step 4: Simplify right side
    87,868x = 42,981,582,400
  5. Step 5: Solve for x
    x = 42,981,582,400/87,868
  6. Step 6: Final answer
    x = 489,160.81

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.