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Finding the Fourth Proportional to 392,591.44, 541,792.80 and 222,841.36

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Solution

The fourth proportional to 392,591.44, 541,792.80 and 222,841.36 is: 307,530.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,591.44 : 541,792.80 = 222,841.36 : x
  2. Step 2: Convert to fraction form
    392,591.44/541,792.80 = 222,841.36/x
  3. Step 3: Cross multiply
    392,591.44x = 541,792.80 × 222,841.36
  4. Step 4: Simplify right side
    392,591.44x = 120,733,844,390.21
  5. Step 5: Solve for x
    x = 120,733,844,390.21/392,591.44
  6. Step 6: Final answer
    x = 307,530.51

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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.