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Finding the Fourth Proportional to 259,879.44, 389,505.24 and 126,559.92

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Solution

The fourth proportional to 259,879.44, 389,505.24 and 126,559.92 is: 189,687.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,879.44 : 389,505.24 = 126,559.92 : x
  2. Step 2: Convert to fraction form
    259,879.44/389,505.24 = 126,559.92/x
  3. Step 3: Cross multiply
    259,879.44x = 389,505.24 × 126,559.92
  4. Step 4: Simplify right side
    259,879.44x = 49,295,752,013.98
  5. Step 5: Solve for x
    x = 49,295,752,013.98/259,879.44
  6. Step 6: Final answer
    x = 189,687.00

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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.