Home / 396,631.85-595,184.16-143,932.05

Finding the Fourth Proportional to 396,631.85, 595,184.16 and 143,932.05

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Solution

The fourth proportional to 396,631.85, 595,184.16 and 143,932.05 is: 215,983.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,631.85 : 595,184.16 = 143,932.05 : x
  2. Step 2: Convert to fraction form
    396,631.85/595,184.16 = 143,932.05/x
  3. Step 3: Cross multiply
    396,631.85x = 595,184.16 × 143,932.05
  4. Step 4: Simplify right side
    396,631.85x = 85,666,076,276.33
  5. Step 5: Solve for x
    x = 85,666,076,276.33/396,631.85
  6. Step 6: Final answer
    x = 215,983.86

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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.