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Finding the Fourth Proportional to 392,141.54, 541,155.27 and 222,375.66

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Solution

The fourth proportional to 392,141.54, 541,155.27 and 222,375.66 is: 306,878.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,141.54 : 541,155.27 = 222,375.66 : x
  2. Step 2: Convert to fraction form
    392,141.54/541,155.27 = 222,375.66/x
  3. Step 3: Cross multiply
    392,141.54x = 541,155.27 × 222,375.66
  4. Step 4: Simplify right side
    392,141.54x = 120,339,760,328.73
  5. Step 5: Solve for x
    x = 120,339,760,328.73/392,141.54
  6. Step 6: Final answer
    x = 306,878.38

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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.