Home / 396,629.09-595,180.03-143,929.30

Finding the Fourth Proportional to 396,629.09, 595,180.03 and 143,929.30

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Solution

The fourth proportional to 396,629.09, 595,180.03 and 143,929.30 is: 215,979.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,629.09 : 595,180.03 = 143,929.30 : x
  2. Step 2: Convert to fraction form
    396,629.09/595,180.03 = 143,929.30/x
  3. Step 3: Cross multiply
    396,629.09x = 595,180.03 × 143,929.30
  4. Step 4: Simplify right side
    396,629.09x = 85,663,842,115.98
  5. Step 5: Solve for x
    x = 85,663,842,115.98/396,629.09
  6. Step 6: Final answer
    x = 215,979.73

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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.