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Finding the Fourth Proportional to 533.96, 736.08 and 386.36

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Solution

The fourth proportional to 533.96, 736.08 and 386.36 is: 532.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.96 : 736.08 = 386.36 : x
  2. Step 2: Convert to fraction form
    533.96/736.08 = 386.36/x
  3. Step 3: Cross multiply
    533.96x = 736.08 × 386.36
  4. Step 4: Simplify right side
    533.96x = 284,391.87
  5. Step 5: Solve for x
    x = 284,391.87/533.96
  6. Step 6: Final answer
    x = 532.61

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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.