Home / 219,621.20-329,438.20-79,354.96

Finding the Fourth Proportional to 219,621.20, 329,438.20 and 79,354.96

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Solution

The fourth proportional to 219,621.20, 329,438.20 and 79,354.96 is: 119,034.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,621.20 : 329,438.20 = 79,354.96 : x
  2. Step 2: Convert to fraction form
    219,621.20/329,438.20 = 79,354.96/x
  3. Step 3: Cross multiply
    219,621.20x = 329,438.20 × 79,354.96
  4. Step 4: Simplify right side
    219,621.20x = 26,142,555,183.47
  5. Step 5: Solve for x
    x = 26,142,555,183.47/219,621.20
  6. Step 6: Final answer
    x = 119,034.75

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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.