Home / 439,440.30-659,132.19-140,135.40

Finding the Fourth Proportional to 439,440.30, 659,132.19 and 140,135.40

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Solution

The fourth proportional to 439,440.30, 659,132.19 and 140,135.40 is: 210,194.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,440.30 : 659,132.19 = 140,135.40 : x
  2. Step 2: Convert to fraction form
    439,440.30/659,132.19 = 140,135.40/x
  3. Step 3: Cross multiply
    439,440.30x = 659,132.19 × 140,135.40
  4. Step 4: Simplify right side
    439,440.30x = 92,367,753,098.53
  5. Step 5: Solve for x
    x = 92,367,753,098.53/439,440.30
  6. Step 6: Final answer
    x = 210,194.09

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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.