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Finding the Fourth Proportional to 662.37, 993.72 and 223.67

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Solution

The fourth proportional to 662.37, 993.72 and 223.67 is: 335.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.37 : 993.72 = 223.67 : x
  2. Step 2: Convert to fraction form
    662.37/993.72 = 223.67/x
  3. Step 3: Cross multiply
    662.37x = 993.72 × 223.67
  4. Step 4: Simplify right side
    662.37x = 222,260.38
  5. Step 5: Solve for x
    x = 222,260.38/662.37
  6. Step 6: Final answer
    x = 335.55

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Double scale
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Similar ratio
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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.