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Finding the Fourth Proportional to 202.55, 303.30 and 168.44

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Solution

The fourth proportional to 202.55, 303.30 and 168.44 is: 252.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.55 : 303.30 = 168.44 : x
  2. Step 2: Convert to fraction form
    202.55/303.30 = 168.44/x
  3. Step 3: Cross multiply
    202.55x = 303.30 × 168.44
  4. Step 4: Simplify right side
    202.55x = 51,086.34
  5. Step 5: Solve for x
    x = 51,086.34/202.55
  6. Step 6: Final answer
    x = 252.22

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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.