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Finding the Fourth Proportional to 163.89, 244.62 and 161.19

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Solution

The fourth proportional to 163.89, 244.62 and 161.19 is: 240.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.89 : 244.62 = 161.19 : x
  2. Step 2: Convert to fraction form
    163.89/244.62 = 161.19/x
  3. Step 3: Cross multiply
    163.89x = 244.62 × 161.19
  4. Step 4: Simplify right side
    163.89x = 39,430.30
  5. Step 5: Solve for x
    x = 39,430.30/163.89
  6. Step 6: Final answer
    x = 240.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.