Home / 281,885.27-422,890.10-82,221.28

Finding the Fourth Proportional to 281,885.27, 422,890.10 and 82,221.28

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Solution

The fourth proportional to 281,885.27, 422,890.10 and 82,221.28 is: 123,350.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,885.27 : 422,890.10 = 82,221.28 : x
  2. Step 2: Convert to fraction form
    281,885.27/422,890.10 = 82,221.28/x
  3. Step 3: Cross multiply
    281,885.27x = 422,890.10 × 82,221.28
  4. Step 4: Simplify right side
    281,885.27x = 34,770,566,540.08
  5. Step 5: Solve for x
    x = 34,770,566,540.08/281,885.27
  6. Step 6: Final answer
    x = 123,350.07

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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.