Home / 219,519.67-329,043.28-143,589.61

Finding the Fourth Proportional to 219,519.67, 329,043.28 and 143,589.61

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Solution

The fourth proportional to 219,519.67, 329,043.28 and 143,589.61 is: 215,229.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,519.67 : 329,043.28 = 143,589.61 : x
  2. Step 2: Convert to fraction form
    219,519.67/329,043.28 = 143,589.61/x
  3. Step 3: Cross multiply
    219,519.67x = 329,043.28 × 143,589.61
  4. Step 4: Simplify right side
    219,519.67x = 47,247,196,569.88
  5. Step 5: Solve for x
    x = 47,247,196,569.88/219,519.67
  6. Step 6: Final answer
    x = 215,229.90

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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.