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Finding the Fourth Proportional to 203,473.20, 280,758.80 and 135,591.52

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Solution

The fourth proportional to 203,473.20, 280,758.80 and 135,591.52 is: 187,093.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,473.20 : 280,758.80 = 135,591.52 : x
  2. Step 2: Convert to fraction form
    203,473.20/280,758.80 = 135,591.52/x
  3. Step 3: Cross multiply
    203,473.20x = 280,758.80 × 135,591.52
  4. Step 4: Simplify right side
    203,473.20x = 38,068,512,445.38
  5. Step 5: Solve for x
    x = 38,068,512,445.38/203,473.20
  6. Step 6: Final answer
    x = 187,093.50

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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.