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Finding the Fourth Proportional to 268.36, 400.22 and 236.01

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Solution

The fourth proportional to 268.36, 400.22 and 236.01 is: 351.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.36 : 400.22 = 236.01 : x
  2. Step 2: Convert to fraction form
    268.36/400.22 = 236.01/x
  3. Step 3: Cross multiply
    268.36x = 400.22 × 236.01
  4. Step 4: Simplify right side
    268.36x = 94,456.46
  5. Step 5: Solve for x
    x = 94,456.46/268.36
  6. Step 6: Final answer
    x = 351.97

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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.