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Finding the Fourth Proportional to 174.14, 261.36 and 97.19

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Solution

The fourth proportional to 174.14, 261.36 and 97.19 is: 145.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.14 : 261.36 = 97.19 : x
  2. Step 2: Convert to fraction form
    174.14/261.36 = 97.19/x
  3. Step 3: Cross multiply
    174.14x = 261.36 × 97.19
  4. Step 4: Simplify right side
    174.14x = 25,401.58
  5. Step 5: Solve for x
    x = 25,401.58/174.14
  6. Step 6: Final answer
    x = 145.87

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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.