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Finding the Fourth Proportional to 274.83, 379.70 and 252.96

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Solution

The fourth proportional to 274.83, 379.70 and 252.96 is: 349.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.83 : 379.70 = 252.96 : x
  2. Step 2: Convert to fraction form
    274.83/379.70 = 252.96/x
  3. Step 3: Cross multiply
    274.83x = 379.70 × 252.96
  4. Step 4: Simplify right side
    274.83x = 96,048.91
  5. Step 5: Solve for x
    x = 96,048.91/274.83
  6. Step 6: Final answer
    x = 349.48

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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.