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Finding the Fourth Proportional to 336.24, 503.33 and 220.43

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Solution

The fourth proportional to 336.24, 503.33 and 220.43 is: 329.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.24 : 503.33 = 220.43 : x
  2. Step 2: Convert to fraction form
    336.24/503.33 = 220.43/x
  3. Step 3: Cross multiply
    336.24x = 503.33 × 220.43
  4. Step 4: Simplify right side
    336.24x = 110,945.41
  5. Step 5: Solve for x
    x = 110,945.41/336.24
  6. Step 6: Final answer
    x = 329.96

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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.