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Finding the Fourth Proportional to 442.73, 663.04 and 236.79

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Solution

The fourth proportional to 442.73, 663.04 and 236.79 is: 354.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.73 : 663.04 = 236.79 : x
  2. Step 2: Convert to fraction form
    442.73/663.04 = 236.79/x
  3. Step 3: Cross multiply
    442.73x = 663.04 × 236.79
  4. Step 4: Simplify right side
    442.73x = 157,001.24
  5. Step 5: Solve for x
    x = 157,001.24/442.73
  6. Step 6: Final answer
    x = 354.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.