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Finding the Fourth Proportional to 367.49, 551.66 and 252.42

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Solution

The fourth proportional to 367.49, 551.66 and 252.42 is: 378.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.49 : 551.66 = 252.42 : x
  2. Step 2: Convert to fraction form
    367.49/551.66 = 252.42/x
  3. Step 3: Cross multiply
    367.49x = 551.66 × 252.42
  4. Step 4: Simplify right side
    367.49x = 139,248.76
  5. Step 5: Solve for x
    x = 139,248.76/367.49
  6. Step 6: Final answer
    x = 378.92

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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.