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Finding the Fourth Proportional to 300.96, 449.24 and 275.31

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Solution

The fourth proportional to 300.96, 449.24 and 275.31 is: 410.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.96 : 449.24 = 275.31 : x
  2. Step 2: Convert to fraction form
    300.96/449.24 = 275.31/x
  3. Step 3: Cross multiply
    300.96x = 449.24 × 275.31
  4. Step 4: Simplify right side
    300.96x = 123,678.89
  5. Step 5: Solve for x
    x = 123,678.89/300.96
  6. Step 6: Final answer
    x = 410.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.