Home / 396,145.20-593,999.10-129,768.60

Finding the Fourth Proportional to 396,145.20, 593,999.10 and 129,768.60

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Solution

The fourth proportional to 396,145.20, 593,999.10 and 129,768.60 is: 194,581.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,145.20 : 593,999.10 = 129,768.60 : x
  2. Step 2: Convert to fraction form
    396,145.20/593,999.10 = 129,768.60/x
  3. Step 3: Cross multiply
    396,145.20x = 593,999.10 × 129,768.60
  4. Step 4: Simplify right side
    396,145.20x = 77,082,431,608.26
  5. Step 5: Solve for x
    x = 77,082,431,608.26/396,145.20
  6. Step 6: Final answer
    x = 194,581.26

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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.