Home / 439,815.20-659,722.80-140,317.70

Finding the Fourth Proportional to 439,815.20, 659,722.80 and 140,317.70

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Solution

The fourth proportional to 439,815.20, 659,722.80 and 140,317.70 is: 210,476.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,815.20 : 659,722.80 = 140,317.70 : x
  2. Step 2: Convert to fraction form
    439,815.20/659,722.80 = 140,317.70/x
  3. Step 3: Cross multiply
    439,815.20x = 659,722.80 × 140,317.70
  4. Step 4: Simplify right side
    439,815.20x = 92,570,785,933.56
  5. Step 5: Solve for x
    x = 92,570,785,933.56/439,815.20
  6. Step 6: Final answer
    x = 210,476.55

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Similar ratio
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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.