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Finding the Fourth Proportional to 327,481.17, 491,221.72 and 90,823.84

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Solution

The fourth proportional to 327,481.17, 491,221.72 and 90,823.84 is: 136,235.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,481.17 : 491,221.72 = 90,823.84 : x
  2. Step 2: Convert to fraction form
    327,481.17/491,221.72 = 90,823.84/x
  3. Step 3: Cross multiply
    327,481.17x = 491,221.72 × 90,823.84
  4. Step 4: Simplify right side
    327,481.17x = 44,614,642,901.80
  5. Step 5: Solve for x
    x = 44,614,642,901.80/327,481.17
  6. Step 6: Final answer
    x = 136,235.75

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1.5x scale

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.