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Finding the Fourth Proportional to 203,843.80, 281,299.08 and 113,196.88

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Solution

The fourth proportional to 203,843.80, 281,299.08 and 113,196.88 is: 156,208.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,843.80 : 281,299.08 = 113,196.88 : x
  2. Step 2: Convert to fraction form
    203,843.80/281,299.08 = 113,196.88/x
  3. Step 3: Cross multiply
    203,843.80x = 281,299.08 × 113,196.88
  4. Step 4: Simplify right side
    203,843.80x = 31,842,178,202.87
  5. Step 5: Solve for x
    x = 31,842,178,202.87/203,843.80
  6. Step 6: Final answer
    x = 156,208.72

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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.