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Finding the Fourth Proportional to 201.09, 303.13 and 192.85

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Solution

The fourth proportional to 201.09, 303.13 and 192.85 is: 290.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.09 : 303.13 = 192.85 : x
  2. Step 2: Convert to fraction form
    201.09/303.13 = 192.85/x
  3. Step 3: Cross multiply
    201.09x = 303.13 × 192.85
  4. Step 4: Simplify right side
    201.09x = 58,458.62
  5. Step 5: Solve for x
    x = 58,458.62/201.09
  6. Step 6: Final answer
    x = 290.71

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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.