Home / 422,008.15-582,385.66-231,021.69

Finding the Fourth Proportional to 422,008.15, 582,385.66 and 231,021.69

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Solution

The fourth proportional to 422,008.15, 582,385.66 and 231,021.69 is: 318,817.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,008.15 : 582,385.66 = 231,021.69 : x
  2. Step 2: Convert to fraction form
    422,008.15/582,385.66 = 231,021.69/x
  3. Step 3: Cross multiply
    422,008.15x = 582,385.66 × 231,021.69
  4. Step 4: Simplify right side
    422,008.15x = 134,543,718,827.41
  5. Step 5: Solve for x
    x = 134,543,718,827.41/422,008.15
  6. Step 6: Final answer
    x = 318,817.82

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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.