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Finding the Fourth Proportional to 352.17, 485.91 and 204.72

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Solution

The fourth proportional to 352.17, 485.91 and 204.72 is: 282.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.17 : 485.91 = 204.72 : x
  2. Step 2: Convert to fraction form
    352.17/485.91 = 204.72/x
  3. Step 3: Cross multiply
    352.17x = 485.91 × 204.72
  4. Step 4: Simplify right side
    352.17x = 99,473.58
  5. Step 5: Solve for x
    x = 99,473.58/352.17
  6. Step 6: Final answer
    x = 282.46

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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.