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Finding the Fourth Proportional to 271,845.80, 407,768.70 and 267,909.20

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Solution

The fourth proportional to 271,845.80, 407,768.70 and 267,909.20 is: 401,863.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,845.80 : 407,768.70 = 267,909.20 : x
  2. Step 2: Convert to fraction form
    271,845.80/407,768.70 = 267,909.20/x
  3. Step 3: Cross multiply
    271,845.80x = 407,768.70 × 267,909.20
  4. Step 4: Simplify right side
    271,845.80x = 109,244,986,202.04
  5. Step 5: Solve for x
    x = 109,244,986,202.04/271,845.80
  6. Step 6: Final answer
    x = 401,863.80

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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.