Home / 422,126.55-582,528.84-231,139.92

Finding the Fourth Proportional to 422,126.55, 582,528.84 and 231,139.92

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Solution

The fourth proportional to 422,126.55, 582,528.84 and 231,139.92 is: 318,969.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,126.55 : 582,528.84 = 231,139.92 : x
  2. Step 2: Convert to fraction form
    422,126.55/582,528.84 = 231,139.92/x
  3. Step 3: Cross multiply
    422,126.55x = 582,528.84 × 231,139.92
  4. Step 4: Simplify right side
    422,126.55x = 134,645,669,475.29
  5. Step 5: Solve for x
    x = 134,645,669,475.29/422,126.55
  6. Step 6: Final answer
    x = 318,969.91

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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.