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Finding the Fourth Proportional to 274.52, 381.36 and 270.02

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Solution

The fourth proportional to 274.52, 381.36 and 270.02 is: 375.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.52 : 381.36 = 270.02 : x
  2. Step 2: Convert to fraction form
    274.52/381.36 = 270.02/x
  3. Step 3: Cross multiply
    274.52x = 381.36 × 270.02
  4. Step 4: Simplify right side
    274.52x = 102,974.83
  5. Step 5: Solve for x
    x = 102,974.83/274.52
  6. Step 6: Final answer
    x = 375.11

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.