Home / 422,121.77-582,522.26-231,135.18

Finding the Fourth Proportional to 422,121.77, 582,522.26 and 231,135.18

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Solution

The fourth proportional to 422,121.77, 582,522.26 and 231,135.18 is: 318,963.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,121.77 : 582,522.26 = 231,135.18 : x
  2. Step 2: Convert to fraction form
    422,121.77/582,522.26 = 231,135.18/x
  3. Step 3: Cross multiply
    422,121.77x = 582,522.26 × 231,135.18
  4. Step 4: Simplify right side
    422,121.77x = 134,641,387,419.11
  5. Step 5: Solve for x
    x = 134,641,387,419.11/422,121.77
  6. Step 6: Final answer
    x = 318,963.38

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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.