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Finding the Fourth Proportional to 300.27, 449.53 and 271.45

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Solution

The fourth proportional to 300.27, 449.53 and 271.45 is: 406.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.27 : 449.53 = 271.45 : x
  2. Step 2: Convert to fraction form
    300.27/449.53 = 271.45/x
  3. Step 3: Cross multiply
    300.27x = 449.53 × 271.45
  4. Step 4: Simplify right side
    300.27x = 122,026.33
  5. Step 5: Solve for x
    x = 122,026.33/300.27
  6. Step 6: Final answer
    x = 406.38

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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.