Home / 327,716.76-491,766.20-138,165.52

Finding the Fourth Proportional to 327,716.76, 491,766.20 and 138,165.52

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Solution

The fourth proportional to 327,716.76, 491,766.20 and 138,165.52 is: 207,328.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,716.76 : 491,766.20 = 138,165.52 : x
  2. Step 2: Convert to fraction form
    327,716.76/491,766.20 = 138,165.52/x
  3. Step 3: Cross multiply
    327,716.76x = 491,766.20 × 138,165.52
  4. Step 4: Simplify right side
    327,716.76x = 67,945,132,741.42
  5. Step 5: Solve for x
    x = 67,945,132,741.42/327,716.76
  6. Step 6: Final answer
    x = 207,328.83

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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.