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Finding the Fourth Proportional to 883.98, 1,326.02 and 267.78

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Solution

The fourth proportional to 883.98, 1,326.02 and 267.78 is: 401.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.98 : 1,326.02 = 267.78 : x
  2. Step 2: Convert to fraction form
    883.98/1,326.02 = 267.78/x
  3. Step 3: Cross multiply
    883.98x = 1,326.02 × 267.78
  4. Step 4: Simplify right side
    883.98x = 355,081.64
  5. Step 5: Solve for x
    x = 355,081.64/883.98
  6. Step 6: Final answer
    x = 401.69

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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.