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Finding the Fourth Proportional to 203,842.80, 281,297.70 and 113,195.88

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Solution

The fourth proportional to 203,842.80, 281,297.70 and 113,195.88 is: 156,207.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,842.80 : 281,297.70 = 113,195.88 : x
  2. Step 2: Convert to fraction form
    203,842.80/281,297.70 = 113,195.88/x
  3. Step 3: Cross multiply
    203,842.80x = 281,297.70 × 113,195.88
  4. Step 4: Simplify right side
    203,842.80x = 31,841,740,693.48
  5. Step 5: Solve for x
    x = 31,841,740,693.48/203,842.80
  6. Step 6: Final answer
    x = 156,207.34

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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.