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Finding the Fourth Proportional to 174.30, 261.04 and 109.34

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Solution

The fourth proportional to 174.30, 261.04 and 109.34 is: 163.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.30 : 261.04 = 109.34 : x
  2. Step 2: Convert to fraction form
    174.30/261.04 = 109.34/x
  3. Step 3: Cross multiply
    174.30x = 261.04 × 109.34
  4. Step 4: Simplify right side
    174.30x = 28,542.11
  5. Step 5: Solve for x
    x = 28,542.11/174.30
  6. Step 6: Final answer
    x = 163.75

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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.