Home / 422,126.78-582,529.15-231,140.18

Finding the Fourth Proportional to 422,126.78, 582,529.15 and 231,140.18

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Solution

The fourth proportional to 422,126.78, 582,529.15 and 231,140.18 is: 318,970.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,126.78 : 582,529.15 = 231,140.18 : x
  2. Step 2: Convert to fraction form
    422,126.78/582,529.15 = 231,140.18/x
  3. Step 3: Cross multiply
    422,126.78x = 582,529.15 × 231,140.18
  4. Step 4: Simplify right side
    422,126.78x = 134,645,892,586.25
  5. Step 5: Solve for x
    x = 134,645,892,586.25/422,126.78
  6. Step 6: Final answer
    x = 318,970.27

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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.