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Finding the Fourth Proportional to 216.94, 326.12 and 174.14

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Solution

The fourth proportional to 216.94, 326.12 and 174.14 is: 261.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    216.94 : 326.12 = 174.14 : x
  2. Step 2: Convert to fraction form
    216.94/326.12 = 174.14/x
  3. Step 3: Cross multiply
    216.94x = 326.12 × 174.14
  4. Step 4: Simplify right side
    216.94x = 56,790.54
  5. Step 5: Solve for x
    x = 56,790.54/216.94
  6. Step 6: Final answer
    x = 261.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.