Home / 422,125.78-582,527.77-231,139.18

Finding the Fourth Proportional to 422,125.78, 582,527.77 and 231,139.18

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Solution

The fourth proportional to 422,125.78, 582,527.77 and 231,139.18 is: 318,968.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,125.78 : 582,527.77 = 231,139.18 : x
  2. Step 2: Convert to fraction form
    422,125.78/582,527.77 = 231,139.18/x
  3. Step 3: Cross multiply
    422,125.78x = 582,527.77 × 231,139.18
  4. Step 4: Simplify right side
    422,125.78x = 134,644,991,085.03
  5. Step 5: Solve for x
    x = 134,644,991,085.03/422,125.78
  6. Step 6: Final answer
    x = 318,968.89

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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.