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Finding the Fourth Proportional to 236.45, 325.03 and 211.29

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Solution

The fourth proportional to 236.45, 325.03 and 211.29 is: 290.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.45 : 325.03 = 211.29 : x
  2. Step 2: Convert to fraction form
    236.45/325.03 = 211.29/x
  3. Step 3: Cross multiply
    236.45x = 325.03 × 211.29
  4. Step 4: Simplify right side
    236.45x = 68,673.96
  5. Step 5: Solve for x
    x = 68,673.96/236.45
  6. Step 6: Final answer
    x = 290.44

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.