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Finding the Fourth Proportional to 238.16, 358.88 and 236.18

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Solution

The fourth proportional to 238.16, 358.88 and 236.18 is: 355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.16 : 358.88 = 236.18 : x
  2. Step 2: Convert to fraction form
    238.16/358.88 = 236.18/x
  3. Step 3: Cross multiply
    238.16x = 358.88 × 236.18
  4. Step 4: Simplify right side
    238.16x = 84,760.28
  5. Step 5: Solve for x
    x = 84,760.28/238.16
  6. Step 6: Final answer
    x = 355.90

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.