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Finding the Fourth Proportional to 236.98, 327.05 and 154.14

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Solution

The fourth proportional to 236.98, 327.05 and 154.14 is: 212.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.98 : 327.05 = 154.14 : x
  2. Step 2: Convert to fraction form
    236.98/327.05 = 154.14/x
  3. Step 3: Cross multiply
    236.98x = 327.05 × 154.14
  4. Step 4: Simplify right side
    236.98x = 50,411.49
  5. Step 5: Solve for x
    x = 50,411.49/236.98
  6. Step 6: Final answer
    x = 212.72

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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.