Home / 281,885.32-422,890.17-82,221.33

Finding the Fourth Proportional to 281,885.32, 422,890.17 and 82,221.33

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Solution

The fourth proportional to 281,885.32, 422,890.17 and 82,221.33 is: 123,350.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,885.32 : 422,890.17 = 82,221.33 : x
  2. Step 2: Convert to fraction form
    281,885.32/422,890.17 = 82,221.33/x
  3. Step 3: Cross multiply
    281,885.32x = 422,890.17 × 82,221.33
  4. Step 4: Simplify right side
    281,885.32x = 34,770,592,144.24
  5. Step 5: Solve for x
    x = 34,770,592,144.24/281,885.32
  6. Step 6: Final answer
    x = 123,350.14

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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.