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Finding the Fourth Proportional to 193.86, 291.66 and 163.14

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Solution

The fourth proportional to 193.86, 291.66 and 163.14 is: 245.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.86 : 291.66 = 163.14 : x
  2. Step 2: Convert to fraction form
    193.86/291.66 = 163.14/x
  3. Step 3: Cross multiply
    193.86x = 291.66 × 163.14
  4. Step 4: Simplify right side
    193.86x = 47,581.41
  5. Step 5: Solve for x
    x = 47,581.41/193.86
  6. Step 6: Final answer
    x = 245.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.