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Finding the Fourth Proportional to 355.24, 532.02 and 200.85

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Solution

The fourth proportional to 355.24, 532.02 and 200.85 is: 300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.24 : 532.02 = 200.85 : x
  2. Step 2: Convert to fraction form
    355.24/532.02 = 200.85/x
  3. Step 3: Cross multiply
    355.24x = 532.02 × 200.85
  4. Step 4: Simplify right side
    355.24x = 106,856.22
  5. Step 5: Solve for x
    x = 106,856.22/355.24
  6. Step 6: Final answer
    x = 300.80

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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.