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Finding the Fourth Proportional to 243.73, 363.29 and 236.89

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Solution

The fourth proportional to 243.73, 363.29 and 236.89 is: 353.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.73 : 363.29 = 236.89 : x
  2. Step 2: Convert to fraction form
    243.73/363.29 = 236.89/x
  3. Step 3: Cross multiply
    243.73x = 363.29 × 236.89
  4. Step 4: Simplify right side
    243.73x = 86,059.77
  5. Step 5: Solve for x
    x = 86,059.77/243.73
  6. Step 6: Final answer
    x = 353.09

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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.