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Finding the Fourth Proportional to 533.59, 736.36 and 323.80

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Solution

The fourth proportional to 533.59, 736.36 and 323.80 is: 446.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.59 : 736.36 = 323.80 : x
  2. Step 2: Convert to fraction form
    533.59/736.36 = 323.80/x
  3. Step 3: Cross multiply
    533.59x = 736.36 × 323.80
  4. Step 4: Simplify right side
    533.59x = 238,430.72
  5. Step 5: Solve for x
    x = 238,430.72/533.59
  6. Step 6: Final answer
    x = 446.84

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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.