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Finding the Fourth Proportional to 281,942.32, 422,872.32 and 82,209.04

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Solution

The fourth proportional to 281,942.32, 422,872.32 and 82,209.04 is: 123,301.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,942.32 : 422,872.32 = 82,209.04 : x
  2. Step 2: Convert to fraction form
    281,942.32/422,872.32 = 82,209.04/x
  3. Step 3: Cross multiply
    281,942.32x = 422,872.32 × 82,209.04
  4. Step 4: Simplify right side
    281,942.32x = 34,763,927,469.77
  5. Step 5: Solve for x
    x = 34,763,927,469.77/281,942.32
  6. Step 6: Final answer
    x = 123,301.56

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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.