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Finding the Third Proportional to 250,287.50 and 387,432.75

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Solution

The third proportional to 250,287.50 and 387,432.75 is: 599,726.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,287.50 : 387,432.75 = 387,432.75 : x
  2. Step 2: Convert to fraction form
    250,287.50/387,432.75 = 387,432.75/x
  3. Step 3: Cross multiply
    250,287.50x = 387,432.75 × 387,432.75
  4. Step 4: Simplify right side
    250,287.50x = 150,104,135,772.56
  5. Step 5: Solve for x
    x = 150,104,135,772.56/250,287.50
  6. Step 6: Final answer
    x = 599,726.86

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.