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Finding the Fourth Proportional to 168,280.56, 252,227.01 and 68,331

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Solution

The fourth proportional to 168,280.56, 252,227.01 and 68,331 is: 102,417.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,280.56 : 252,227.01 = 68,331 : x
  2. Step 2: Convert to fraction form
    168,280.56/252,227.01 = 68,331/x
  3. Step 3: Cross multiply
    168,280.56x = 252,227.01 × 68,331
  4. Step 4: Simplify right side
    168,280.56x = 17,234,923,820.31
  5. Step 5: Solve for x
    x = 17,234,923,820.31/168,280.56
  6. Step 6: Final answer
    x = 102,417.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.