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Finding the Fourth Proportional to 392,508.18, 541,659.76 and 220,402.22

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Solution

The fourth proportional to 392,508.18, 541,659.76 and 220,402.22 is: 304,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,508.18 : 541,659.76 = 220,402.22 : x
  2. Step 2: Convert to fraction form
    392,508.18/541,659.76 = 220,402.22/x
  3. Step 3: Cross multiply
    392,508.18x = 541,659.76 × 220,402.22
  4. Step 4: Simplify right side
    392,508.18x = 119,383,010,329.36
  5. Step 5: Solve for x
    x = 119,383,010,329.36/392,508.18
  6. Step 6: Final answer
    x = 304,154.20

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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.