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Finding the Fourth Proportional to 204.99, 308.25 and 163.95

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Solution

The fourth proportional to 204.99, 308.25 and 163.95 is: 246.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.99 : 308.25 = 163.95 : x
  2. Step 2: Convert to fraction form
    204.99/308.25 = 163.95/x
  3. Step 3: Cross multiply
    204.99x = 308.25 × 163.95
  4. Step 4: Simplify right side
    204.99x = 50,537.59
  5. Step 5: Solve for x
    x = 50,537.59/204.99
  6. Step 6: Final answer
    x = 246.54

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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.