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Finding the Third Proportional to 87,677.50 and 191,761

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Solution

The third proportional to 87,677.50 and 191,761 is: 419,403.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,677.50 : 191,761 = 191,761 : x
  2. Step 2: Convert to fraction form
    87,677.50/191,761 = 191,761/x
  3. Step 3: Cross multiply
    87,677.50x = 191,761 × 191,761
  4. Step 4: Simplify right side
    87,677.50x = 36,772,281,121
  5. Step 5: Solve for x
    x = 36,772,281,121/87,677.50
  6. Step 6: Final answer
    x = 419,403.85

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.