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Finding the Fourth Proportional to 268.76, 369.96 and 262.28

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Solution

The fourth proportional to 268.76, 369.96 and 262.28 is: 361.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.76 : 369.96 = 262.28 : x
  2. Step 2: Convert to fraction form
    268.76/369.96 = 262.28/x
  3. Step 3: Cross multiply
    268.76x = 369.96 × 262.28
  4. Step 4: Simplify right side
    268.76x = 97,033.11
  5. Step 5: Solve for x
    x = 97,033.11/268.76
  6. Step 6: Final answer
    x = 361.04

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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.