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Finding the Fourth Proportional to 168.94, 232.40 and 162.28

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Solution

The fourth proportional to 168.94, 232.40 and 162.28 is: 223.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.94 : 232.40 = 162.28 : x
  2. Step 2: Convert to fraction form
    168.94/232.40 = 162.28/x
  3. Step 3: Cross multiply
    168.94x = 232.40 × 162.28
  4. Step 4: Simplify right side
    168.94x = 37,713.87
  5. Step 5: Solve for x
    x = 37,713.87/168.94
  6. Step 6: Final answer
    x = 223.24

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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.