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Finding the Fourth Proportional to 441.44, 661.92 and 167.38

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Solution

The fourth proportional to 441.44, 661.92 and 167.38 is: 250.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.44 : 661.92 = 167.38 : x
  2. Step 2: Convert to fraction form
    441.44/661.92 = 167.38/x
  3. Step 3: Cross multiply
    441.44x = 661.92 × 167.38
  4. Step 4: Simplify right side
    441.44x = 110,792.17
  5. Step 5: Solve for x
    x = 110,792.17/441.44
  6. Step 6: Final answer
    x = 250.98

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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.