Home / 396,132.85-594,255.75-129,914.20

Finding the Fourth Proportional to 396,132.85, 594,255.75 and 129,914.20

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Solution

The fourth proportional to 396,132.85, 594,255.75 and 129,914.20 is: 194,889.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,132.85 : 594,255.75 = 129,914.20 : x
  2. Step 2: Convert to fraction form
    396,132.85/594,255.75 = 129,914.20/x
  3. Step 3: Cross multiply
    396,132.85x = 594,255.75 × 129,914.20
  4. Step 4: Simplify right side
    396,132.85x = 77,202,260,356.65
  5. Step 5: Solve for x
    x = 77,202,260,356.65/396,132.85
  6. Step 6: Final answer
    x = 194,889.82

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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.