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Finding the Fourth Proportional to 439,489, 658,842.52 and 158,943.88

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Solution

The fourth proportional to 439,489, 658,842.52 and 158,943.88 is: 238,274.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,489 : 658,842.52 = 158,943.88 : x
  2. Step 2: Convert to fraction form
    439,489/658,842.52 = 158,943.88/x
  3. Step 3: Cross multiply
    439,489x = 658,842.52 × 158,943.88
  4. Step 4: Simplify right side
    439,489x = 104,718,986,437.78
  5. Step 5: Solve for x
    x = 104,718,986,437.78/439,489
  6. Step 6: Final answer
    x = 238,274.42

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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.