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Finding the Fourth Proportional to 299.09, 412.67 and 173.04

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Solution

The fourth proportional to 299.09, 412.67 and 173.04 is: 238.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.09 : 412.67 = 173.04 : x
  2. Step 2: Convert to fraction form
    299.09/412.67 = 173.04/x
  3. Step 3: Cross multiply
    299.09x = 412.67 × 173.04
  4. Step 4: Simplify right side
    299.09x = 71,407.55
  5. Step 5: Solve for x
    x = 71,407.55/299.09
  6. Step 6: Final answer
    x = 238.75

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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.