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Finding the Fourth Proportional to 394,286.52, 544,102.42 and 249,169.85

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Solution

The fourth proportional to 394,286.52, 544,102.42 and 249,169.85 is: 343,846.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,286.52 : 544,102.42 = 249,169.85 : x
  2. Step 2: Convert to fraction form
    394,286.52/544,102.42 = 249,169.85/x
  3. Step 3: Cross multiply
    394,286.52x = 544,102.42 × 249,169.85
  4. Step 4: Simplify right side
    394,286.52x = 135,573,920,600.75
  5. Step 5: Solve for x
    x = 135,573,920,600.75/394,286.52
  6. Step 6: Final answer
    x = 343,846.19

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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.