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Finding the Fourth Proportional to 392,499.60, 541,652.04 and 222,736.56

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Solution

The fourth proportional to 392,499.60, 541,652.04 and 222,736.56 is: 307,377.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,499.60 : 541,652.04 = 222,736.56 : x
  2. Step 2: Convert to fraction form
    392,499.60/541,652.04 = 222,736.56/x
  3. Step 3: Cross multiply
    392,499.60x = 541,652.04 × 222,736.56
  4. Step 4: Simplify right side
    392,499.60x = 120,645,712,106.58
  5. Step 5: Solve for x
    x = 120,645,712,106.58/392,499.60
  6. Step 6: Final answer
    x = 307,377.92

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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.