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Finding the Fourth Proportional to 352.35, 486.17 and 197.10

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Solution

The fourth proportional to 352.35, 486.17 and 197.10 is: 271.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.35 : 486.17 = 197.10 : x
  2. Step 2: Convert to fraction form
    352.35/486.17 = 197.10/x
  3. Step 3: Cross multiply
    352.35x = 486.17 × 197.10
  4. Step 4: Simplify right side
    352.35x = 95,823.12
  5. Step 5: Solve for x
    x = 95,823.12/352.35
  6. Step 6: Final answer
    x = 271.95

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Why These Related Problems?

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