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Finding the Fourth Proportional to 163.60, 225.61 and 148.88

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Solution

The fourth proportional to 163.60, 225.61 and 148.88 is: 205.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.60 : 225.61 = 148.88 : x
  2. Step 2: Convert to fraction form
    163.60/225.61 = 148.88/x
  3. Step 3: Cross multiply
    163.60x = 225.61 × 148.88
  4. Step 4: Simplify right side
    163.60x = 33,589.01
  5. Step 5: Solve for x
    x = 33,589.01/163.60
  6. Step 6: Final answer
    x = 205.31

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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.