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Finding the Fourth Proportional to 844.94, 1,267.44 and 267.86

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Solution

The fourth proportional to 844.94, 1,267.44 and 267.86 is: 401.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.94 : 1,267.44 = 267.86 : x
  2. Step 2: Convert to fraction form
    844.94/1,267.44 = 267.86/x
  3. Step 3: Cross multiply
    844.94x = 1,267.44 × 267.86
  4. Step 4: Simplify right side
    844.94x = 339,496.48
  5. Step 5: Solve for x
    x = 339,496.48/844.94
  6. Step 6: Final answer
    x = 401.80

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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.