Home / 281,942.30-422,869.50-82,241.78

Finding the Fourth Proportional to 281,942.30, 422,869.50 and 82,241.78

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Solution

The fourth proportional to 281,942.30, 422,869.50 and 82,241.78 is: 123,349.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,942.30 : 422,869.50 = 82,241.78 : x
  2. Step 2: Convert to fraction form
    281,942.30/422,869.50 = 82,241.78/x
  3. Step 3: Cross multiply
    281,942.30x = 422,869.50 × 82,241.78
  4. Step 4: Simplify right side
    281,942.30x = 34,777,540,387.71
  5. Step 5: Solve for x
    x = 34,777,540,387.71/281,942.30
  6. Step 6: Final answer
    x = 123,349.85

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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.