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Finding the Fourth Proportional to 236.97, 355.29 and 159.93

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Solution

The fourth proportional to 236.97, 355.29 and 159.93 is: 239.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.97 : 355.29 = 159.93 : x
  2. Step 2: Convert to fraction form
    236.97/355.29 = 159.93/x
  3. Step 3: Cross multiply
    236.97x = 355.29 × 159.93
  4. Step 4: Simplify right side
    236.97x = 56,821.53
  5. Step 5: Solve for x
    x = 56,821.53/236.97
  6. Step 6: Final answer
    x = 239.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.