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Finding the Fourth Proportional to 223.17, 335.56 and 205.35

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Solution

The fourth proportional to 223.17, 335.56 and 205.35 is: 308.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.17 : 335.56 = 205.35 : x
  2. Step 2: Convert to fraction form
    223.17/335.56 = 205.35/x
  3. Step 3: Cross multiply
    223.17x = 335.56 × 205.35
  4. Step 4: Simplify right side
    223.17x = 68,907.25
  5. Step 5: Solve for x
    x = 68,907.25/223.17
  6. Step 6: Final answer
    x = 308.77

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.