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Finding the Fourth Proportional to 439,343.08, 658,262.40 and 239,803.54

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Solution

The fourth proportional to 439,343.08, 658,262.40 and 239,803.54 is: 359,294.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,343.08 : 658,262.40 = 239,803.54 : x
  2. Step 2: Convert to fraction form
    439,343.08/658,262.40 = 239,803.54/x
  3. Step 3: Cross multiply
    439,343.08x = 658,262.40 × 239,803.54
  4. Step 4: Simplify right side
    439,343.08x = 157,853,653,768.90
  5. Step 5: Solve for x
    x = 157,853,653,768.90/439,343.08
  6. Step 6: Final answer
    x = 359,294.73

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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.