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Finding the Fourth Proportional to 664.01, 996.01 and 231.17

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Solution

The fourth proportional to 664.01, 996.01 and 231.17 is: 346.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    664.01 : 996.01 = 231.17 : x
  2. Step 2: Convert to fraction form
    664.01/996.01 = 231.17/x
  3. Step 3: Cross multiply
    664.01x = 996.01 × 231.17
  4. Step 4: Simplify right side
    664.01x = 230,242.65
  5. Step 5: Solve for x
    x = 230,242.65/664.01
  6. Step 6: Final answer
    x = 346.75

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Similar ratio
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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.