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Finding the Fourth Proportional to 267.33, 369.36 and 212.54

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Solution

The fourth proportional to 267.33, 369.36 and 212.54 is: 293.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.33 : 369.36 = 212.54 : x
  2. Step 2: Convert to fraction form
    267.33/369.36 = 212.54/x
  3. Step 3: Cross multiply
    267.33x = 369.36 × 212.54
  4. Step 4: Simplify right side
    267.33x = 78,504.01
  5. Step 5: Solve for x
    x = 78,504.01/267.33
  6. Step 6: Final answer
    x = 293.66

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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.