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Finding the Fourth Proportional to 236.79, 352.83 and 211.26

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Solution

The fourth proportional to 236.79, 352.83 and 211.26 is: 314.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.79 : 352.83 = 211.26 : x
  2. Step 2: Convert to fraction form
    236.79/352.83 = 211.26/x
  3. Step 3: Cross multiply
    236.79x = 352.83 × 211.26
  4. Step 4: Simplify right side
    236.79x = 74,538.87
  5. Step 5: Solve for x
    x = 74,538.87/236.79
  6. Step 6: Final answer
    x = 314.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.