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Finding the Fourth Proportional to 231,879.60, 345,742.32 and 227,680.56

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Solution

The fourth proportional to 231,879.60, 345,742.32 and 227,680.56 is: 339,481.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,879.60 : 345,742.32 = 227,680.56 : x
  2. Step 2: Convert to fraction form
    231,879.60/345,742.32 = 227,680.56/x
  3. Step 3: Cross multiply
    231,879.60x = 345,742.32 × 227,680.56
  4. Step 4: Simplify right side
    231,879.60x = 78,718,805,033.30
  5. Step 5: Solve for x
    x = 78,718,805,033.30/231,879.60
  6. Step 6: Final answer
    x = 339,481.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.