Home / 281,630.45-422,446.55-71,268.32

Finding the Fourth Proportional to 281,630.45, 422,446.55 and 71,268.32

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Solution

The fourth proportional to 281,630.45, 422,446.55 and 71,268.32 is: 106,902.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,630.45 : 422,446.55 = 71,268.32 : x
  2. Step 2: Convert to fraction form
    281,630.45/422,446.55 = 71,268.32/x
  3. Step 3: Cross multiply
    281,630.45x = 422,446.55 × 71,268.32
  4. Step 4: Simplify right side
    281,630.45x = 30,107,053,439.72
  5. Step 5: Solve for x
    x = 30,107,053,439.72/281,630.45
  6. Step 6: Final answer
    x = 106,902.69

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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.