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Finding the Fourth Proportional to 299.22, 412.80 and 174.90

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Solution

The fourth proportional to 299.22, 412.80 and 174.90 is: 241.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.22 : 412.80 = 174.90 : x
  2. Step 2: Convert to fraction form
    299.22/412.80 = 174.90/x
  3. Step 3: Cross multiply
    299.22x = 412.80 × 174.90
  4. Step 4: Simplify right side
    299.22x = 72,198.72
  5. Step 5: Solve for x
    x = 72,198.72/299.22
  6. Step 6: Final answer
    x = 241.29

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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.