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Finding the Fourth Proportional to 168.95, 254.27 and 152.18

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Solution

The fourth proportional to 168.95, 254.27 and 152.18 is: 229.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.95 : 254.27 = 152.18 : x
  2. Step 2: Convert to fraction form
    168.95/254.27 = 152.18/x
  3. Step 3: Cross multiply
    168.95x = 254.27 × 152.18
  4. Step 4: Simplify right side
    168.95x = 38,692.78
  5. Step 5: Solve for x
    x = 38,692.78/168.95
  6. Step 6: Final answer
    x = 229.03

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.