Home / 227,779.20-341,267.04-138,821.76

Finding the Fourth Proportional to 227,779.20, 341,267.04 and 138,821.76

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Solution

The fourth proportional to 227,779.20, 341,267.04 and 138,821.76 is: 207,987.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,779.20 : 341,267.04 = 138,821.76 : x
  2. Step 2: Convert to fraction form
    227,779.20/341,267.04 = 138,821.76/x
  3. Step 3: Cross multiply
    227,779.20x = 341,267.04 × 138,821.76
  4. Step 4: Simplify right side
    227,779.20x = 47,375,291,122.79
  5. Step 5: Solve for x
    x = 47,375,291,122.79/227,779.20
  6. Step 6: Final answer
    x = 207,987.78

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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.