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Finding the Fourth Proportional to 439,939, 659,908.50 and 159,456.52

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Solution

The fourth proportional to 439,939, 659,908.50 and 159,456.52 is: 239,184.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,939 : 659,908.50 = 159,456.52 : x
  2. Step 2: Convert to fraction form
    439,939/659,908.50 = 159,456.52/x
  3. Step 3: Cross multiply
    439,939x = 659,908.50 × 159,456.52
  4. Step 4: Simplify right side
    439,939x = 105,226,712,928.42
  5. Step 5: Solve for x
    x = 105,226,712,928.42/439,939
  6. Step 6: Final answer
    x = 239,184.78

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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.