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Finding the Fourth Proportional to 263.25, 363.49 and 208.27

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Solution

The fourth proportional to 263.25, 363.49 and 208.27 is: 287.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.25 : 363.49 = 208.27 : x
  2. Step 2: Convert to fraction form
    263.25/363.49 = 208.27/x
  3. Step 3: Cross multiply
    263.25x = 363.49 × 208.27
  4. Step 4: Simplify right side
    263.25x = 75,704.00
  5. Step 5: Solve for x
    x = 75,704.00/263.25
  6. Step 6: Final answer
    x = 287.57

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