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Finding the Fourth Proportional to 392,375.52, 541,440.78 and 220,254.06

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Solution

The fourth proportional to 392,375.52, 541,440.78 and 220,254.06 is: 303,929.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,375.52 : 541,440.78 = 220,254.06 : x
  2. Step 2: Convert to fraction form
    392,375.52/541,440.78 = 220,254.06/x
  3. Step 3: Cross multiply
    392,375.52x = 541,440.78 × 220,254.06
  4. Step 4: Simplify right side
    392,375.52x = 119,254,530,044.57
  5. Step 5: Solve for x
    x = 119,254,530,044.57/392,375.52
  6. Step 6: Final answer
    x = 303,929.59

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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.