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Finding the Fourth Proportional to 268.25, 371.77 and 263.39

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Solution

The fourth proportional to 268.25, 371.77 and 263.39 is: 365.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.25 : 371.77 = 263.39 : x
  2. Step 2: Convert to fraction form
    268.25/371.77 = 263.39/x
  3. Step 3: Cross multiply
    268.25x = 371.77 × 263.39
  4. Step 4: Simplify right side
    268.25x = 97,917.98
  5. Step 5: Solve for x
    x = 97,917.98/268.25
  6. Step 6: Final answer
    x = 365.03

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.