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Finding the Fourth Proportional to 262,867.79, 394,640.67 and 225,666.92

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Solution

The fourth proportional to 262,867.79, 394,640.67 and 225,666.92 is: 338,791.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,867.79 : 394,640.67 = 225,666.92 : x
  2. Step 2: Convert to fraction form
    262,867.79/394,640.67 = 225,666.92/x
  3. Step 3: Cross multiply
    262,867.79x = 394,640.67 × 225,666.92
  4. Step 4: Simplify right side
    262,867.79x = 89,057,344,505.64
  5. Step 5: Solve for x
    x = 89,057,344,505.64/262,867.79
  6. Step 6: Final answer
    x = 338,791.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.