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Finding the Fourth Proportional to 236.97, 356.72 and 214.65

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Solution

The fourth proportional to 236.97, 356.72 and 214.65 is: 323.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.97 : 356.72 = 214.65 : x
  2. Step 2: Convert to fraction form
    236.97/356.72 = 214.65/x
  3. Step 3: Cross multiply
    236.97x = 356.72 × 214.65
  4. Step 4: Simplify right side
    236.97x = 76,568.87
  5. Step 5: Solve for x
    x = 76,568.87/236.97
  6. Step 6: Final answer
    x = 323.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.