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Finding the Fourth Proportional to 439,305.98, 658,206.73 and 239,766.38

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Solution

The fourth proportional to 439,305.98, 658,206.73 and 239,766.38 is: 359,239.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,305.98 : 658,206.73 = 239,766.38 : x
  2. Step 2: Convert to fraction form
    439,305.98/658,206.73 = 239,766.38/x
  3. Step 3: Cross multiply
    439,305.98x = 658,206.73 × 239,766.38
  4. Step 4: Simplify right side
    439,305.98x = 157,815,844,943.74
  5. Step 5: Solve for x
    x = 157,815,844,943.74/439,305.98
  6. Step 6: Final answer
    x = 359,239.01

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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.