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Finding the Fourth Proportional to 533.30, 799.88 and 225.18

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Solution

The fourth proportional to 533.30, 799.88 and 225.18 is: 337.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.30 : 799.88 = 225.18 : x
  2. Step 2: Convert to fraction form
    533.30/799.88 = 225.18/x
  3. Step 3: Cross multiply
    533.30x = 799.88 × 225.18
  4. Step 4: Simplify right side
    533.30x = 180,116.98
  5. Step 5: Solve for x
    x = 180,116.98/533.30
  6. Step 6: Final answer
    x = 337.74

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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.