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Finding the Fourth Proportional to 553.72, 828.54 and 333.56

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Solution

The fourth proportional to 553.72, 828.54 and 333.56 is: 499.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.72 : 828.54 = 333.56 : x
  2. Step 2: Convert to fraction form
    553.72/828.54 = 333.56/x
  3. Step 3: Cross multiply
    553.72x = 828.54 × 333.56
  4. Step 4: Simplify right side
    553.72x = 276,367.80
  5. Step 5: Solve for x
    x = 276,367.80/553.72
  6. Step 6: Final answer
    x = 499.11

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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.