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Finding the Fourth Proportional to 163.48, 244.98 and 127.48

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Solution

The fourth proportional to 163.48, 244.98 and 127.48 is: 191.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.48 : 244.98 = 127.48 : x
  2. Step 2: Convert to fraction form
    163.48/244.98 = 127.48/x
  3. Step 3: Cross multiply
    163.48x = 244.98 × 127.48
  4. Step 4: Simplify right side
    163.48x = 31,230.05
  5. Step 5: Solve for x
    x = 31,230.05/163.48
  6. Step 6: Final answer
    x = 191.03

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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.