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Finding the Fourth Proportional to 663.33, 994.83 and 252.25

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Solution

The fourth proportional to 663.33, 994.83 and 252.25 is: 378.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    663.33 : 994.83 = 252.25 : x
  2. Step 2: Convert to fraction form
    663.33/994.83 = 252.25/x
  3. Step 3: Cross multiply
    663.33x = 994.83 × 252.25
  4. Step 4: Simplify right side
    663.33x = 250,942.43
  5. Step 5: Solve for x
    x = 250,942.43/663.33
  6. Step 6: Final answer
    x = 378.30

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Double scale
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1.5x scale

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.