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Finding the Fourth Proportional to 422,755.08, 583,401.87 and 231,764.37

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Solution

The fourth proportional to 422,755.08, 583,401.87 and 231,764.37 is: 319,834.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,755.08 : 583,401.87 = 231,764.37 : x
  2. Step 2: Convert to fraction form
    422,755.08/583,401.87 = 231,764.37/x
  3. Step 3: Cross multiply
    422,755.08x = 583,401.87 × 231,764.37
  4. Step 4: Simplify right side
    422,755.08x = 135,211,766,857.37
  5. Step 5: Solve for x
    x = 135,211,766,857.37/422,755.08
  6. Step 6: Final answer
    x = 319,834.75

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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.