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Finding the Fourth Proportional to 273,742.20, 410,540.40 and 84,202.20

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Solution

The fourth proportional to 273,742.20, 410,540.40 and 84,202.20 is: 126,280.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,742.20 : 410,540.40 = 84,202.20 : x
  2. Step 2: Convert to fraction form
    273,742.20/410,540.40 = 84,202.20/x
  3. Step 3: Cross multiply
    273,742.20x = 410,540.40 × 84,202.20
  4. Step 4: Simplify right side
    273,742.20x = 34,568,404,868.88
  5. Step 5: Solve for x
    x = 34,568,404,868.88/273,742.20
  6. Step 6: Final answer
    x = 126,280.88

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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.