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Finding the Fourth Proportional to 225,639.08, 338,456 and 54,861.78

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Solution

The fourth proportional to 225,639.08, 338,456 and 54,861.78 is: 82,292.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,639.08 : 338,456 = 54,861.78 : x
  2. Step 2: Convert to fraction form
    225,639.08/338,456 = 54,861.78/x
  3. Step 3: Cross multiply
    225,639.08x = 338,456 × 54,861.78
  4. Step 4: Simplify right side
    225,639.08x = 18,568,298,611.68
  5. Step 5: Solve for x
    x = 18,568,298,611.68/225,639.08
  6. Step 6: Final answer
    x = 82,292.03

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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.