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Finding the Third Proportional to 357,142.50 and 539,358.75

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Solution

The third proportional to 357,142.50 and 539,358.75 is: 814,542.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,142.50 : 539,358.75 = 539,358.75 : x
  2. Step 2: Convert to fraction form
    357,142.50/539,358.75 = 539,358.75/x
  3. Step 3: Cross multiply
    357,142.50x = 539,358.75 × 539,358.75
  4. Step 4: Simplify right side
    357,142.50x = 290,907,861,201.56
  5. Step 5: Solve for x
    x = 290,907,861,201.56/357,142.50
  6. Step 6: Final answer
    x = 814,542.83

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.