Home / 225,720.27-338,691.35-90,778.95

Finding the Fourth Proportional to 225,720.27, 338,691.35 and 90,778.95

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Solution

The fourth proportional to 225,720.27, 338,691.35 and 90,778.95 is: 136,213.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,720.27 : 338,691.35 = 90,778.95 : x
  2. Step 2: Convert to fraction form
    225,720.27/338,691.35 = 90,778.95/x
  3. Step 3: Cross multiply
    225,720.27x = 338,691.35 × 90,778.95
  4. Step 4: Simplify right side
    225,720.27x = 30,746,045,127.08
  5. Step 5: Solve for x
    x = 30,746,045,127.08/225,720.27
  6. Step 6: Final answer
    x = 136,213.04

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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.