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Finding the Fourth Proportional to 299.08, 412.75 and 168.08

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Solution

The fourth proportional to 299.08, 412.75 and 168.08 is: 231.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.08 : 412.75 = 168.08 : x
  2. Step 2: Convert to fraction form
    299.08/412.75 = 168.08/x
  3. Step 3: Cross multiply
    299.08x = 412.75 × 168.08
  4. Step 4: Simplify right side
    299.08x = 69,375.02
  5. Step 5: Solve for x
    x = 69,375.02/299.08
  6. Step 6: Final answer
    x = 231.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.