Home / 396,631.11-595,183.05-143,931.30

Finding the Fourth Proportional to 396,631.11, 595,183.05 and 143,931.30

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Solution

The fourth proportional to 396,631.11, 595,183.05 and 143,931.30 is: 215,982.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,631.11 : 595,183.05 = 143,931.30 : x
  2. Step 2: Convert to fraction form
    396,631.11/595,183.05 = 143,931.30/x
  3. Step 3: Cross multiply
    396,631.11x = 595,183.05 × 143,931.30
  4. Step 4: Simplify right side
    396,631.11x = 85,665,470,124.47
  5. Step 5: Solve for x
    x = 85,665,470,124.47/396,631.11
  6. Step 6: Final answer
    x = 215,982.73

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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.