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Finding the Fourth Proportional to 800.00, 1,200.01 and 222.88

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Solution

The fourth proportional to 800.00, 1,200.01 and 222.88 is: 334.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    800.00 : 1,200.01 = 222.88 : x
  2. Step 2: Convert to fraction form
    800.00/1,200.01 = 222.88/x
  3. Step 3: Cross multiply
    800.00x = 1,200.01 × 222.88
  4. Step 4: Simplify right side
    800.00x = 267,456.50
  5. Step 5: Solve for x
    x = 267,456.50/800.00
  6. Step 6: Final answer
    x = 334.32

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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.