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Finding the Fourth Proportional to 451.44, 676.08 and 268.38

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Solution

The fourth proportional to 451.44, 676.08 and 268.38 is: 401.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.44 : 676.08 = 268.38 : x
  2. Step 2: Convert to fraction form
    451.44/676.08 = 268.38/x
  3. Step 3: Cross multiply
    451.44x = 676.08 × 268.38
  4. Step 4: Simplify right side
    451.44x = 181,446.35
  5. Step 5: Solve for x
    x = 181,446.35/451.44
  6. Step 6: Final answer
    x = 401.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.