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Finding the Fourth Proportional to 238.61, 356.27 and 236.05

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Solution

The fourth proportional to 238.61, 356.27 and 236.05 is: 352.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.61 : 356.27 = 236.05 : x
  2. Step 2: Convert to fraction form
    238.61/356.27 = 236.05/x
  3. Step 3: Cross multiply
    238.61x = 356.27 × 236.05
  4. Step 4: Simplify right side
    238.61x = 84,095.46
  5. Step 5: Solve for x
    x = 84,095.46/238.61
  6. Step 6: Final answer
    x = 352.44

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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.