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Finding the Fourth Proportional to 267.24, 368.46 and 217.98

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Solution

The fourth proportional to 267.24, 368.46 and 217.98 is: 300.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.24 : 368.46 = 217.98 : x
  2. Step 2: Convert to fraction form
    267.24/368.46 = 217.98/x
  3. Step 3: Cross multiply
    267.24x = 368.46 × 217.98
  4. Step 4: Simplify right side
    267.24x = 80,316.91
  5. Step 5: Solve for x
    x = 80,316.91/267.24
  6. Step 6: Final answer
    x = 300.54

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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.