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Finding the Fourth Proportional to 352.32, 486.24 and 197.07

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Solution

The fourth proportional to 352.32, 486.24 and 197.07 is: 271.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.32 : 486.24 = 197.07 : x
  2. Step 2: Convert to fraction form
    352.32/486.24 = 197.07/x
  3. Step 3: Cross multiply
    352.32x = 486.24 × 197.07
  4. Step 4: Simplify right side
    352.32x = 95,823.32
  5. Step 5: Solve for x
    x = 95,823.32/352.32
  6. Step 6: Final answer
    x = 271.98

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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.