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Finding the Fourth Proportional to 263.86, 364.25 and 201.95

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Solution

The fourth proportional to 263.86, 364.25 and 201.95 is: 278.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.86 : 364.25 = 201.95 : x
  2. Step 2: Convert to fraction form
    263.86/364.25 = 201.95/x
  3. Step 3: Cross multiply
    263.86x = 364.25 × 201.95
  4. Step 4: Simplify right side
    263.86x = 73,559.88
  5. Step 5: Solve for x
    x = 73,559.88/263.86
  6. Step 6: Final answer
    x = 278.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.