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Finding the Fourth Proportional to 163.00, 224.89 and 107.68

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Solution

The fourth proportional to 163.00, 224.89 and 107.68 is: 148.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.00 : 224.89 = 107.68 : x
  2. Step 2: Convert to fraction form
    163.00/224.89 = 107.68/x
  3. Step 3: Cross multiply
    163.00x = 224.89 × 107.68
  4. Step 4: Simplify right side
    163.00x = 24,215.90
  5. Step 5: Solve for x
    x = 24,215.90/163.00
  6. Step 6: Final answer
    x = 148.56

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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.