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Finding the Fourth Proportional to 439,305.50, 658,205.94 and 239,765.88

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Solution

The fourth proportional to 439,305.50, 658,205.94 and 239,765.88 is: 359,238.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,305.50 : 658,205.94 = 239,765.88 : x
  2. Step 2: Convert to fraction form
    439,305.50/658,205.94 = 239,765.88/x
  3. Step 3: Cross multiply
    439,305.50x = 658,205.94 × 239,765.88
  4. Step 4: Simplify right side
    439,305.50x = 157,815,326,425.33
  5. Step 5: Solve for x
    x = 157,815,326,425.33/439,305.50
  6. Step 6: Final answer
    x = 359,238.22

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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.