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Finding the Fourth Proportional to 367.96, 552 and 136.88

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Solution

The fourth proportional to 367.96, 552 and 136.88 is: 205.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.96 : 552 = 136.88 : x
  2. Step 2: Convert to fraction form
    367.96/552 = 136.88/x
  3. Step 3: Cross multiply
    367.96x = 552 × 136.88
  4. Step 4: Simplify right side
    367.96x = 75,557.76
  5. Step 5: Solve for x
    x = 75,557.76/367.96
  6. Step 6: Final answer
    x = 205.34

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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.