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Finding the Fourth Proportional to 262,879.56, 394,037.76 and 187,771.92

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Solution

The fourth proportional to 262,879.56, 394,037.76 and 187,771.92 is: 281,456.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,879.56 : 394,037.76 = 187,771.92 : x
  2. Step 2: Convert to fraction form
    262,879.56/394,037.76 = 187,771.92/x
  3. Step 3: Cross multiply
    262,879.56x = 394,037.76 × 187,771.92
  4. Step 4: Simplify right side
    262,879.56x = 73,989,226,747.70
  5. Step 5: Solve for x
    x = 73,989,226,747.70/262,879.56
  6. Step 6: Final answer
    x = 281,456.75

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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.