Home / 422,140.16-582,553.08-231,157.28

Finding the Fourth Proportional to 422,140.16, 582,553.08 and 231,157.28

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Solution

The fourth proportional to 422,140.16, 582,553.08 and 231,157.28 is: 318,996.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,140.16 : 582,553.08 = 231,157.28 : x
  2. Step 2: Convert to fraction form
    422,140.16/582,553.08 = 231,157.28/x
  3. Step 3: Cross multiply
    422,140.16x = 582,553.08 × 231,157.28
  4. Step 4: Simplify right side
    422,140.16x = 134,661,385,428.42
  5. Step 5: Solve for x
    x = 134,661,385,428.42/422,140.16
  6. Step 6: Final answer
    x = 318,996.86

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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.