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Finding the Fourth Proportional to 439,607.85, 659,404.54 and 140,084.29

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Solution

The fourth proportional to 439,607.85, 659,404.54 and 140,084.29 is: 210,124.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,607.85 : 659,404.54 = 140,084.29 : x
  2. Step 2: Convert to fraction form
    439,607.85/659,404.54 = 140,084.29/x
  3. Step 3: Cross multiply
    439,607.85x = 659,404.54 × 140,084.29
  4. Step 4: Simplify right side
    439,607.85x = 92,372,216,808.68
  5. Step 5: Solve for x
    x = 92,372,216,808.68/439,607.85
  6. Step 6: Final answer
    x = 210,124.13

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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.