Home / 269,517.20-404,311.80-91,979.60

Finding the Fourth Proportional to 269,517.20, 404,311.80 and 91,979.60

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Solution

The fourth proportional to 269,517.20, 404,311.80 and 91,979.60 is: 137,981.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,517.20 : 404,311.80 = 91,979.60 : x
  2. Step 2: Convert to fraction form
    269,517.20/404,311.80 = 91,979.60/x
  3. Step 3: Cross multiply
    269,517.20x = 404,311.80 × 91,979.60
  4. Step 4: Simplify right side
    269,517.20x = 37,188,437,639.28
  5. Step 5: Solve for x
    x = 37,188,437,639.28/269,517.20
  6. Step 6: Final answer
    x = 137,981.69

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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.