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Finding the Third Proportional to 87,531.75 and 186,727.50

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Solution

The third proportional to 87,531.75 and 186,727.50 is: 398,337.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,531.75 : 186,727.50 = 186,727.50 : x
  2. Step 2: Convert to fraction form
    87,531.75/186,727.50 = 186,727.50/x
  3. Step 3: Cross multiply
    87,531.75x = 186,727.50 × 186,727.50
  4. Step 4: Simplify right side
    87,531.75x = 34,867,159,256.25
  5. Step 5: Solve for x
    x = 34,867,159,256.25/87,531.75
  6. Step 6: Final answer
    x = 398,337.28

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.