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Finding the Fourth Proportional to 299.54, 449.04 and 162.48

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Solution

The fourth proportional to 299.54, 449.04 and 162.48 is: 243.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.54 : 449.04 = 162.48 : x
  2. Step 2: Convert to fraction form
    299.54/449.04 = 162.48/x
  3. Step 3: Cross multiply
    299.54x = 449.04 × 162.48
  4. Step 4: Simplify right side
    299.54x = 72,960.02
  5. Step 5: Solve for x
    x = 72,960.02/299.54
  6. Step 6: Final answer
    x = 243.57

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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.