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Finding the Fourth Proportional to 274.05, 408.72 and 233.18

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Solution

The fourth proportional to 274.05, 408.72 and 233.18 is: 347.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.05 : 408.72 = 233.18 : x
  2. Step 2: Convert to fraction form
    274.05/408.72 = 233.18/x
  3. Step 3: Cross multiply
    274.05x = 408.72 × 233.18
  4. Step 4: Simplify right side
    274.05x = 95,304.38
  5. Step 5: Solve for x
    x = 95,304.38/274.05
  6. Step 6: Final answer
    x = 347.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.