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Finding the Fourth Proportional to 203,191.20, 280,540.88 and 126,826.64

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Solution

The fourth proportional to 203,191.20, 280,540.88 and 126,826.64 is: 175,106.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,191.20 : 280,540.88 = 126,826.64 : x
  2. Step 2: Convert to fraction form
    203,191.20/280,540.88 = 126,826.64/x
  3. Step 3: Cross multiply
    203,191.20x = 280,540.88 × 126,826.64
  4. Step 4: Simplify right side
    203,191.20x = 35,580,057,193.04
  5. Step 5: Solve for x
    x = 35,580,057,193.04/203,191.20
  6. Step 6: Final answer
    x = 175,106.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.