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Finding the Fourth Proportional to 163.92, 244.18 and 156.54

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Solution

The fourth proportional to 163.92, 244.18 and 156.54 is: 233.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.92 : 244.18 = 156.54 : x
  2. Step 2: Convert to fraction form
    163.92/244.18 = 156.54/x
  3. Step 3: Cross multiply
    163.92x = 244.18 × 156.54
  4. Step 4: Simplify right side
    163.92x = 38,223.94
  5. Step 5: Solve for x
    x = 38,223.94/163.92
  6. Step 6: Final answer
    x = 233.19

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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.