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Finding the Fourth Proportional to 392,517.30, 541,672.34 and 220,411.34

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Solution

The fourth proportional to 392,517.30, 541,672.34 and 220,411.34 is: 304,166.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,517.30 : 541,672.34 = 220,411.34 : x
  2. Step 2: Convert to fraction form
    392,517.30/541,672.34 = 220,411.34/x
  3. Step 3: Cross multiply
    392,517.30x = 541,672.34 × 220,411.34
  4. Step 4: Simplify right side
    392,517.30x = 119,390,726,300.34
  5. Step 5: Solve for x
    x = 119,390,726,300.34/392,517.30
  6. Step 6: Final answer
    x = 304,166.79

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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.