Home / 320,511.20-480,589.29-131,104.57

Finding the Fourth Proportional to 320,511.20, 480,589.29 and 131,104.57

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Solution

The fourth proportional to 320,511.20, 480,589.29 and 131,104.57 is: 196,584.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,511.20 : 480,589.29 = 131,104.57 : x
  2. Step 2: Convert to fraction form
    320,511.20/480,589.29 = 131,104.57/x
  3. Step 3: Cross multiply
    320,511.20x = 480,589.29 × 131,104.57
  4. Step 4: Simplify right side
    320,511.20x = 63,007,451,010.58
  5. Step 5: Solve for x
    x = 63,007,451,010.58/320,511.20
  6. Step 6: Final answer
    x = 196,584.24

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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.