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Finding the Fourth Proportional to 281,944.32, 422,875.32 and 82,211.04

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Solution

The fourth proportional to 281,944.32, 422,875.32 and 82,211.04 is: 123,304.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,944.32 : 422,875.32 = 82,211.04 : x
  2. Step 2: Convert to fraction form
    281,944.32/422,875.32 = 82,211.04/x
  3. Step 3: Cross multiply
    281,944.32x = 422,875.32 × 82,211.04
  4. Step 4: Simplify right side
    281,944.32x = 34,765,019,847.53
  5. Step 5: Solve for x
    x = 34,765,019,847.53/281,944.32
  6. Step 6: Final answer
    x = 123,304.56

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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.