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Finding the Fourth Proportional to 533.34, 798.99 and 447.23

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Solution

The fourth proportional to 533.34, 798.99 and 447.23 is: 669.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.34 : 798.99 = 447.23 : x
  2. Step 2: Convert to fraction form
    533.34/798.99 = 447.23/x
  3. Step 3: Cross multiply
    533.34x = 798.99 × 447.23
  4. Step 4: Simplify right side
    533.34x = 357,332.30
  5. Step 5: Solve for x
    x = 357,332.30/533.34
  6. Step 6: Final answer
    x = 669.99

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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.