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Finding the Fourth Proportional to 268.37, 372.25 and 261.26

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Solution

The fourth proportional to 268.37, 372.25 and 261.26 is: 362.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.37 : 372.25 = 261.26 : x
  2. Step 2: Convert to fraction form
    268.37/372.25 = 261.26/x
  3. Step 3: Cross multiply
    268.37x = 372.25 × 261.26
  4. Step 4: Simplify right side
    268.37x = 97,252.43
  5. Step 5: Solve for x
    x = 97,252.43/268.37
  6. Step 6: Final answer
    x = 362.38

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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.