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Finding the Fourth Proportional to 439,306.98, 658,208.22 and 239,767.38

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Solution

The fourth proportional to 439,306.98, 658,208.22 and 239,767.38 is: 359,240.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,306.98 : 658,208.22 = 239,767.38 : x
  2. Step 2: Convert to fraction form
    439,306.98/658,208.22 = 239,767.38/x
  3. Step 3: Cross multiply
    439,306.98x = 658,208.22 × 239,767.38
  4. Step 4: Simplify right side
    439,306.98x = 157,816,860,403.86
  5. Step 5: Solve for x
    x = 157,816,860,403.86/439,306.98
  6. Step 6: Final answer
    x = 359,240.50

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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.