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Finding the Fourth Proportional to 281,910.80, 422,760.80 and 113,374.17

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Solution

The fourth proportional to 281,910.80, 422,760.80 and 113,374.17 is: 170,018.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,910.80 : 422,760.80 = 113,374.17 : x
  2. Step 2: Convert to fraction form
    281,910.80/422,760.80 = 113,374.17/x
  3. Step 3: Cross multiply
    281,910.80x = 422,760.80 × 113,374.17
  4. Step 4: Simplify right side
    281,910.80x = 47,930,155,091.97
  5. Step 5: Solve for x
    x = 47,930,155,091.97/281,910.80
  6. Step 6: Final answer
    x = 170,018.87

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1.5x scale

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.