Home / 396,628.85-595,179.66-143,929.05

Finding the Fourth Proportional to 396,628.85, 595,179.66 and 143,929.05

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Solution

The fourth proportional to 396,628.85, 595,179.66 and 143,929.05 is: 215,979.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,628.85 : 595,179.66 = 143,929.05 : x
  2. Step 2: Convert to fraction form
    396,628.85/595,179.66 = 143,929.05/x
  3. Step 3: Cross multiply
    396,628.85x = 595,179.66 × 143,929.05
  4. Step 4: Simplify right side
    396,628.85x = 85,663,643,043.12
  5. Step 5: Solve for x
    x = 85,663,643,043.12/396,628.85
  6. Step 6: Final answer
    x = 215,979.36

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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.