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Finding the Fourth Proportional to 355.92, 533.96 and 112.46

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Solution

The fourth proportional to 355.92, 533.96 and 112.46 is: 168.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.92 : 533.96 = 112.46 : x
  2. Step 2: Convert to fraction form
    355.92/533.96 = 112.46/x
  3. Step 3: Cross multiply
    355.92x = 533.96 × 112.46
  4. Step 4: Simplify right side
    355.92x = 60,049.14
  5. Step 5: Solve for x
    x = 60,049.14/355.92
  6. Step 6: Final answer
    x = 168.72

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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.