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Finding the Fourth Proportional to 270.94, 406.54 and 108.66

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Solution

The fourth proportional to 270.94, 406.54 and 108.66 is: 163.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.94 : 406.54 = 108.66 : x
  2. Step 2: Convert to fraction form
    270.94/406.54 = 108.66/x
  3. Step 3: Cross multiply
    270.94x = 406.54 × 108.66
  4. Step 4: Simplify right side
    270.94x = 44,174.64
  5. Step 5: Solve for x
    x = 44,174.64/270.94
  6. Step 6: Final answer
    x = 163.04

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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.