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Finding the Fourth Proportional to 267.26, 368.94 and 208.11

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Solution

The fourth proportional to 267.26, 368.94 and 208.11 is: 287.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.26 : 368.94 = 208.11 : x
  2. Step 2: Convert to fraction form
    267.26/368.94 = 208.11/x
  3. Step 3: Cross multiply
    267.26x = 368.94 × 208.11
  4. Step 4: Simplify right side
    267.26x = 76,780.10
  5. Step 5: Solve for x
    x = 76,780.10/267.26
  6. Step 6: Final answer
    x = 287.29

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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.