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Finding the Fourth Proportional to 274.04, 377.28 and 239.52

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Solution

The fourth proportional to 274.04, 377.28 and 239.52 is: 329.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.04 : 377.28 = 239.52 : x
  2. Step 2: Convert to fraction form
    274.04/377.28 = 239.52/x
  3. Step 3: Cross multiply
    274.04x = 377.28 × 239.52
  4. Step 4: Simplify right side
    274.04x = 90,366.11
  5. Step 5: Solve for x
    x = 90,366.11/274.04
  6. Step 6: Final answer
    x = 329.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.