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Finding the Fourth Proportional to 533.56, 799.12 and 447.16

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Solution

The fourth proportional to 533.56, 799.12 and 447.16 is: 669.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.56 : 799.12 = 447.16 : x
  2. Step 2: Convert to fraction form
    533.56/799.12 = 447.16/x
  3. Step 3: Cross multiply
    533.56x = 799.12 × 447.16
  4. Step 4: Simplify right side
    533.56x = 357,334.50
  5. Step 5: Solve for x
    x = 357,334.50/533.56
  6. Step 6: Final answer
    x = 669.72

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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.