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Finding the Fourth Proportional to 168.88, 252.14 and 158.58

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Solution

The fourth proportional to 168.88, 252.14 and 158.58 is: 236.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.88 : 252.14 = 158.58 : x
  2. Step 2: Convert to fraction form
    168.88/252.14 = 158.58/x
  3. Step 3: Cross multiply
    168.88x = 252.14 × 158.58
  4. Step 4: Simplify right side
    168.88x = 39,984.36
  5. Step 5: Solve for x
    x = 39,984.36/168.88
  6. Step 6: Final answer
    x = 236.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.