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Finding the Fourth Proportional to 281,771.80, 422,612.72 and 104,238.42

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Solution

The fourth proportional to 281,771.80, 422,612.72 and 104,238.42 is: 156,340.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,771.80 : 422,612.72 = 104,238.42 : x
  2. Step 2: Convert to fraction form
    281,771.80/422,612.72 = 104,238.42/x
  3. Step 3: Cross multiply
    281,771.80x = 422,612.72 × 104,238.42
  4. Step 4: Simplify right side
    281,771.80x = 44,052,482,204.70
  5. Step 5: Solve for x
    x = 44,052,482,204.70/281,771.80
  6. Step 6: Final answer
    x = 156,340.99

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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.