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Finding the Fourth Proportional to 533.56, 800.13 and 208.88

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Solution

The fourth proportional to 533.56, 800.13 and 208.88 is: 313.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.56 : 800.13 = 208.88 : x
  2. Step 2: Convert to fraction form
    533.56/800.13 = 208.88/x
  3. Step 3: Cross multiply
    533.56x = 800.13 × 208.88
  4. Step 4: Simplify right side
    533.56x = 167,131.15
  5. Step 5: Solve for x
    x = 167,131.15/533.56
  6. Step 6: Final answer
    x = 313.24

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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.