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Finding the Fourth Proportional to 533.09, 799.56 and 259.11

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Solution

The fourth proportional to 533.09, 799.56 and 259.11 is: 388.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.09 : 799.56 = 259.11 : x
  2. Step 2: Convert to fraction form
    533.09/799.56 = 259.11/x
  3. Step 3: Cross multiply
    533.09x = 799.56 × 259.11
  4. Step 4: Simplify right side
    533.09x = 207,173.99
  5. Step 5: Solve for x
    x = 207,173.99/533.09
  6. Step 6: Final answer
    x = 388.63

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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.