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Finding the Fourth Proportional to 299.97, 449.55 and 163.08

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Solution

The fourth proportional to 299.97, 449.55 and 163.08 is: 244.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.97 : 449.55 = 163.08 : x
  2. Step 2: Convert to fraction form
    299.97/449.55 = 163.08/x
  3. Step 3: Cross multiply
    299.97x = 449.55 × 163.08
  4. Step 4: Simplify right side
    299.97x = 73,312.61
  5. Step 5: Solve for x
    x = 73,312.61/299.97
  6. Step 6: Final answer
    x = 244.40

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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.