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Finding the Fourth Proportional to 352.34, 486.25 and 197.09

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Solution

The fourth proportional to 352.34, 486.25 and 197.09 is: 271.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.34 : 486.25 = 197.09 : x
  2. Step 2: Convert to fraction form
    352.34/486.25 = 197.09/x
  3. Step 3: Cross multiply
    352.34x = 486.25 × 197.09
  4. Step 4: Simplify right side
    352.34x = 95,832.36
  5. Step 5: Solve for x
    x = 95,832.36/352.34
  6. Step 6: Final answer
    x = 271.99

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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.