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Finding the Fourth Proportional to 327.54, 491.58 and 236.28

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Solution

The fourth proportional to 327.54, 491.58 and 236.28 is: 354.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.54 : 491.58 = 236.28 : x
  2. Step 2: Convert to fraction form
    327.54/491.58 = 236.28/x
  3. Step 3: Cross multiply
    327.54x = 491.58 × 236.28
  4. Step 4: Simplify right side
    327.54x = 116,150.52
  5. Step 5: Solve for x
    x = 116,150.52/327.54
  6. Step 6: Final answer
    x = 354.61

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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.