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Finding the Fourth Proportional to 267.14, 369.11 and 212.36

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Solution

The fourth proportional to 267.14, 369.11 and 212.36 is: 293.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.14 : 369.11 = 212.36 : x
  2. Step 2: Convert to fraction form
    267.14/369.11 = 212.36/x
  3. Step 3: Cross multiply
    267.14x = 369.11 × 212.36
  4. Step 4: Simplify right side
    267.14x = 78,381.29
  5. Step 5: Solve for x
    x = 78,381.29/267.14
  6. Step 6: Final answer
    x = 293.41

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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.