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Finding the Fourth Proportional to 392,577.60, 541,759.68 and 222,814.56

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Solution

The fourth proportional to 392,577.60, 541,759.68 and 222,814.56 is: 307,485.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,577.60 : 541,759.68 = 222,814.56 : x
  2. Step 2: Convert to fraction form
    392,577.60/541,759.68 = 222,814.56/x
  3. Step 3: Cross multiply
    392,577.60x = 541,759.68 × 222,814.56
  4. Step 4: Simplify right side
    392,577.60x = 120,711,944,724.94
  5. Step 5: Solve for x
    x = 120,711,944,724.94/392,577.60
  6. Step 6: Final answer
    x = 307,485.56

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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.