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Finding the Fourth Proportional to 533.84, 736.40 and 323.89

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Solution

The fourth proportional to 533.84, 736.40 and 323.89 is: 446.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.84 : 736.40 = 323.89 : x
  2. Step 2: Convert to fraction form
    533.84/736.40 = 323.89/x
  3. Step 3: Cross multiply
    533.84x = 736.40 × 323.89
  4. Step 4: Simplify right side
    533.84x = 238,511.56
  5. Step 5: Solve for x
    x = 238,511.56/533.84
  6. Step 6: Final answer
    x = 446.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.