Home / 221,425.20-331,700.40-132,414.30

Finding the Fourth Proportional to 221,425.20, 331,700.40 and 132,414.30

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Solution

The fourth proportional to 221,425.20, 331,700.40 and 132,414.30 is: 198,359.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,425.20 : 331,700.40 = 132,414.30 : x
  2. Step 2: Convert to fraction form
    221,425.20/331,700.40 = 132,414.30/x
  3. Step 3: Cross multiply
    221,425.20x = 331,700.40 × 132,414.30
  4. Step 4: Simplify right side
    221,425.20x = 43,921,876,275.72
  5. Step 5: Solve for x
    x = 43,921,876,275.72/221,425.20
  6. Step 6: Final answer
    x = 198,359.88

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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.