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Finding the Fourth Proportional to 262.05, 391.24 and 236.13

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Solution

The fourth proportional to 262.05, 391.24 and 236.13 is: 352.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.05 : 391.24 = 236.13 : x
  2. Step 2: Convert to fraction form
    262.05/391.24 = 236.13/x
  3. Step 3: Cross multiply
    262.05x = 391.24 × 236.13
  4. Step 4: Simplify right side
    262.05x = 92,383.50
  5. Step 5: Solve for x
    x = 92,383.50/262.05
  6. Step 6: Final answer
    x = 352.54

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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.