Home / 422,316.25-582,807.66-238,540.21

Finding the Fourth Proportional to 422,316.25, 582,807.66 and 238,540.21

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Solution

The fourth proportional to 422,316.25, 582,807.66 and 238,540.21 is: 329,191.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,316.25 : 582,807.66 = 238,540.21 : x
  2. Step 2: Convert to fraction form
    422,316.25/582,807.66 = 238,540.21/x
  3. Step 3: Cross multiply
    422,316.25x = 582,807.66 × 238,540.21
  4. Step 4: Simplify right side
    422,316.25x = 139,023,059,254.46
  5. Step 5: Solve for x
    x = 139,023,059,254.46/422,316.25
  6. Step 6: Final answer
    x = 329,191.83

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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.