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Finding the Fourth Proportional to 422,342.62, 582,832.78 and 231,355.96

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Solution

The fourth proportional to 422,342.62, 582,832.78 and 231,355.96 is: 319,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,342.62 : 582,832.78 = 231,355.96 : x
  2. Step 2: Convert to fraction form
    422,342.62/582,832.78 = 231,355.96/x
  3. Step 3: Cross multiply
    422,342.62x = 582,832.78 × 231,355.96
  4. Step 4: Simplify right side
    422,342.62x = 134,841,837,336.37
  5. Step 5: Solve for x
    x = 134,841,837,336.37/422,342.62
  6. Step 6: Final answer
    x = 319,271.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.