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Finding the Fourth Proportional to 268.97, 371.15 and 150.91

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Solution

The fourth proportional to 268.97, 371.15 and 150.91 is: 208.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.97 : 371.15 = 150.91 : x
  2. Step 2: Convert to fraction form
    268.97/371.15 = 150.91/x
  3. Step 3: Cross multiply
    268.97x = 371.15 × 150.91
  4. Step 4: Simplify right side
    268.97x = 56,007.64
  5. Step 5: Solve for x
    x = 56,007.64/268.97
  6. Step 6: Final answer
    x = 208.23

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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.