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Finding the Fourth Proportional to 533.30, 799.32 and 472.55

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Solution

The fourth proportional to 533.30, 799.32 and 472.55 is: 708.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.30 : 799.32 = 472.55 : x
  2. Step 2: Convert to fraction form
    533.30/799.32 = 472.55/x
  3. Step 3: Cross multiply
    533.30x = 799.32 × 472.55
  4. Step 4: Simplify right side
    533.30x = 377,718.67
  5. Step 5: Solve for x
    x = 377,718.67/533.30
  6. Step 6: Final answer
    x = 708.27

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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.