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Finding the Fourth Proportional to 439,896.96, 659,910.40 and 159,348.80

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Solution

The fourth proportional to 439,896.96, 659,910.40 and 159,348.80 is: 239,046.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,896.96 : 659,910.40 = 159,348.80 : x
  2. Step 2: Convert to fraction form
    439,896.96/659,910.40 = 159,348.80/x
  3. Step 3: Cross multiply
    439,896.96x = 659,910.40 × 159,348.80
  4. Step 4: Simplify right side
    439,896.96x = 105,155,930,347.52
  5. Step 5: Solve for x
    x = 105,155,930,347.52/439,896.96
  6. Step 6: Final answer
    x = 239,046.73

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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.