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Finding the Fourth Proportional to 226,471.20, 339,620.40 and 68,647.20

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Solution

The fourth proportional to 226,471.20, 339,620.40 and 68,647.20 is: 102,944.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,471.20 : 339,620.40 = 68,647.20 : x
  2. Step 2: Convert to fraction form
    226,471.20/339,620.40 = 68,647.20/x
  3. Step 3: Cross multiply
    226,471.20x = 339,620.40 × 68,647.20
  4. Step 4: Simplify right side
    226,471.20x = 23,313,989,522.88
  5. Step 5: Solve for x
    x = 23,313,989,522.88/226,471.20
  6. Step 6: Final answer
    x = 102,944.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.