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Finding the Fourth Proportional to 352.18, 485.97 and 204.79

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Solution

The fourth proportional to 352.18, 485.97 and 204.79 is: 282.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.18 : 485.97 = 204.79 : x
  2. Step 2: Convert to fraction form
    352.18/485.97 = 204.79/x
  3. Step 3: Cross multiply
    352.18x = 485.97 × 204.79
  4. Step 4: Simplify right side
    352.18x = 99,521.80
  5. Step 5: Solve for x
    x = 99,521.80/352.18
  6. Step 6: Final answer
    x = 282.59

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.