Home / 392,742.28-541,951.09-220,646.76

Finding the Fourth Proportional to 392,742.28, 541,951.09 and 220,646.76

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Solution

The fourth proportional to 392,742.28, 541,951.09 and 220,646.76 is: 304,473.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,742.28 : 541,951.09 = 220,646.76 : x
  2. Step 2: Convert to fraction form
    392,742.28/541,951.09 = 220,646.76/x
  3. Step 3: Cross multiply
    392,742.28x = 541,951.09 × 220,646.76
  4. Step 4: Simplify right side
    392,742.28x = 119,579,752,086.97
  5. Step 5: Solve for x
    x = 119,579,752,086.97/392,742.28
  6. Step 6: Final answer
    x = 304,473.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.