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Finding the Fourth Proportional to 263.38, 393.01 and 236.05

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Solution

The fourth proportional to 263.38, 393.01 and 236.05 is: 352.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.38 : 393.01 = 236.05 : x
  2. Step 2: Convert to fraction form
    263.38/393.01 = 236.05/x
  3. Step 3: Cross multiply
    263.38x = 393.01 × 236.05
  4. Step 4: Simplify right side
    263.38x = 92,770.01
  5. Step 5: Solve for x
    x = 92,770.01/263.38
  6. Step 6: Final answer
    x = 352.23

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