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Finding the Fourth Proportional to 333.20, 500.76 and 223.87

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Solution

The fourth proportional to 333.20, 500.76 and 223.87 is: 336.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.20 : 500.76 = 223.87 : x
  2. Step 2: Convert to fraction form
    333.20/500.76 = 223.87/x
  3. Step 3: Cross multiply
    333.20x = 500.76 × 223.87
  4. Step 4: Simplify right side
    333.20x = 112,105.14
  5. Step 5: Solve for x
    x = 112,105.14/333.20
  6. Step 6: Final answer
    x = 336.45

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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.