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Finding the Fourth Proportional to 392,613.85, 541,809.71 and 222,850.81

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Solution

The fourth proportional to 392,613.85, 541,809.71 and 222,850.81 is: 307,535.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,613.85 : 541,809.71 = 222,850.81 : x
  2. Step 2: Convert to fraction form
    392,613.85/541,809.71 = 222,850.81/x
  3. Step 3: Cross multiply
    392,613.85x = 541,809.71 × 222,850.81
  4. Step 4: Simplify right side
    392,613.85x = 120,742,732,739.37
  5. Step 5: Solve for x
    x = 120,742,732,739.37/392,613.85
  6. Step 6: Final answer
    x = 307,535.59

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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.