Home / 327,704.12-491,747.17-138,152.85

Finding the Fourth Proportional to 327,704.12, 491,747.17 and 138,152.85

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Solution

The fourth proportional to 327,704.12, 491,747.17 and 138,152.85 is: 207,309.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,704.12 : 491,747.17 = 138,152.85 : x
  2. Step 2: Convert to fraction form
    327,704.12/491,747.17 = 138,152.85/x
  3. Step 3: Cross multiply
    327,704.12x = 491,747.17 × 138,152.85
  4. Step 4: Simplify right side
    327,704.12x = 67,936,273,014.93
  5. Step 5: Solve for x
    x = 67,936,273,014.93/327,704.12
  6. Step 6: Final answer
    x = 207,309.79

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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.