Home / 422,147.20-582,555.20-231,157.12

Finding the Fourth Proportional to 422,147.20, 582,555.20 and 231,157.12

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Solution

The fourth proportional to 422,147.20, 582,555.20 and 231,157.12 is: 318,992.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,147.20 : 582,555.20 = 231,157.12 : x
  2. Step 2: Convert to fraction form
    422,147.20/582,555.20 = 231,157.12/x
  3. Step 3: Cross multiply
    422,147.20x = 582,555.20 × 231,157.12
  4. Step 4: Simplify right side
    422,147.20x = 134,661,782,273.02
  5. Step 5: Solve for x
    x = 134,661,782,273.02/422,147.20
  6. Step 6: Final answer
    x = 318,992.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.