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Finding the Fourth Proportional to 274.42, 377.87 and 268.35

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Solution

The fourth proportional to 274.42, 377.87 and 268.35 is: 369.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.42 : 377.87 = 268.35 : x
  2. Step 2: Convert to fraction form
    274.42/377.87 = 268.35/x
  3. Step 3: Cross multiply
    274.42x = 377.87 × 268.35
  4. Step 4: Simplify right side
    274.42x = 101,398.66
  5. Step 5: Solve for x
    x = 101,398.66/274.42
  6. Step 6: Final answer
    x = 369.50

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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.