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Finding the Fourth Proportional to 449.46, 674.28 and 160.89

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Solution

The fourth proportional to 449.46, 674.28 and 160.89 is: 241.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.46 : 674.28 = 160.89 : x
  2. Step 2: Convert to fraction form
    449.46/674.28 = 160.89/x
  3. Step 3: Cross multiply
    449.46x = 674.28 × 160.89
  4. Step 4: Simplify right side
    449.46x = 108,484.91
  5. Step 5: Solve for x
    x = 108,484.91/449.46
  6. Step 6: Final answer
    x = 241.37

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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.