Home / 396,131.85-594,254.25-129,913.20

Finding the Fourth Proportional to 396,131.85, 594,254.25 and 129,913.20

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Solution

The fourth proportional to 396,131.85, 594,254.25 and 129,913.20 is: 194,888.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,131.85 : 594,254.25 = 129,913.20 : x
  2. Step 2: Convert to fraction form
    396,131.85/594,254.25 = 129,913.20/x
  3. Step 3: Cross multiply
    396,131.85x = 594,254.25 × 129,913.20
  4. Step 4: Simplify right side
    396,131.85x = 77,201,471,231.10
  5. Step 5: Solve for x
    x = 77,201,471,231.10/396,131.85
  6. Step 6: Final answer
    x = 194,888.32

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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.