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Finding the Fourth Proportional to 274.62, 379.44 and 262.74

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Solution

The fourth proportional to 274.62, 379.44 and 262.74 is: 363.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.62 : 379.44 = 262.74 : x
  2. Step 2: Convert to fraction form
    274.62/379.44 = 262.74/x
  3. Step 3: Cross multiply
    274.62x = 379.44 × 262.74
  4. Step 4: Simplify right side
    274.62x = 99,694.07
  5. Step 5: Solve for x
    x = 99,694.07/274.62
  6. Step 6: Final answer
    x = 363.03

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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.