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Finding the Fourth Proportional to 367.64, 551.50 and 136.60

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Solution

The fourth proportional to 367.64, 551.50 and 136.60 is: 204.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.64 : 551.50 = 136.60 : x
  2. Step 2: Convert to fraction form
    367.64/551.50 = 136.60/x
  3. Step 3: Cross multiply
    367.64x = 551.50 × 136.60
  4. Step 4: Simplify right side
    367.64x = 75,334.90
  5. Step 5: Solve for x
    x = 75,334.90/367.64
  6. Step 6: Final answer
    x = 204.91

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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.