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Finding the Fourth Proportional to 613.41, 920.13 and 223.44

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Solution

The fourth proportional to 613.41, 920.13 and 223.44 is: 335.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.41 : 920.13 = 223.44 : x
  2. Step 2: Convert to fraction form
    613.41/920.13 = 223.44/x
  3. Step 3: Cross multiply
    613.41x = 920.13 × 223.44
  4. Step 4: Simplify right side
    613.41x = 205,593.85
  5. Step 5: Solve for x
    x = 205,593.85/613.41
  6. Step 6: Final answer
    x = 335.17

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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.