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Finding the Fourth Proportional to 267.24, 368.34 and 198.12

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Solution

The fourth proportional to 267.24, 368.34 and 198.12 is: 273.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.24 : 368.34 = 198.12 : x
  2. Step 2: Convert to fraction form
    267.24/368.34 = 198.12/x
  3. Step 3: Cross multiply
    267.24x = 368.34 × 198.12
  4. Step 4: Simplify right side
    267.24x = 72,975.52
  5. Step 5: Solve for x
    x = 72,975.52/267.24
  6. Step 6: Final answer
    x = 273.07

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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.