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Finding the Fourth Proportional to 268.89, 371.25 and 169.35

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Solution

The fourth proportional to 268.89, 371.25 and 169.35 is: 233.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.89 : 371.25 = 169.35 : x
  2. Step 2: Convert to fraction form
    268.89/371.25 = 169.35/x
  3. Step 3: Cross multiply
    268.89x = 371.25 × 169.35
  4. Step 4: Simplify right side
    268.89x = 62,871.19
  5. Step 5: Solve for x
    x = 62,871.19/268.89
  6. Step 6: Final answer
    x = 233.82

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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.