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Finding the Fourth Proportional to 239.10, 356.91 and 236.82

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Solution

The fourth proportional to 239.10, 356.91 and 236.82 is: 353.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.10 : 356.91 = 236.82 : x
  2. Step 2: Convert to fraction form
    239.10/356.91 = 236.82/x
  3. Step 3: Cross multiply
    239.10x = 356.91 × 236.82
  4. Step 4: Simplify right side
    239.10x = 84,523.43
  5. Step 5: Solve for x
    x = 84,523.43/239.10
  6. Step 6: Final answer
    x = 353.51

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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.