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Finding the Fourth Proportional to 392,605.60, 541,798.32 and 222,842.56

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Solution

The fourth proportional to 392,605.60, 541,798.32 and 222,842.56 is: 307,524.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,605.60 : 541,798.32 = 222,842.56 : x
  2. Step 2: Convert to fraction form
    392,605.60/541,798.32 = 222,842.56/x
  3. Step 3: Cross multiply
    392,605.60x = 541,798.32 × 222,842.56
  4. Step 4: Simplify right side
    392,605.60x = 120,735,724,632.50
  5. Step 5: Solve for x
    x = 120,735,724,632.50/392,605.60
  6. Step 6: Final answer
    x = 307,524.20

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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.