Home / 269,540.20-404,237.40-80,000.20

Finding the Fourth Proportional to 269,540.20, 404,237.40 and 80,000.20

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Solution

The fourth proportional to 269,540.20, 404,237.40 and 80,000.20 is: 119,978.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,540.20 : 404,237.40 = 80,000.20 : x
  2. Step 2: Convert to fraction form
    269,540.20/404,237.40 = 80,000.20/x
  3. Step 3: Cross multiply
    269,540.20x = 404,237.40 × 80,000.20
  4. Step 4: Simplify right side
    269,540.20x = 32,339,072,847.48
  5. Step 5: Solve for x
    x = 32,339,072,847.48/269,540.20
  6. Step 6: Final answer
    x = 119,978.66

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1.5x scale

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.