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Finding the Fourth Proportional to 236.84, 326.94 and 154.02

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Solution

The fourth proportional to 236.84, 326.94 and 154.02 is: 212.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.84 : 326.94 = 154.02 : x
  2. Step 2: Convert to fraction form
    236.84/326.94 = 154.02/x
  3. Step 3: Cross multiply
    236.84x = 326.94 × 154.02
  4. Step 4: Simplify right side
    236.84x = 50,354.53
  5. Step 5: Solve for x
    x = 50,354.53/236.84
  6. Step 6: Final answer
    x = 212.61

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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.