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Finding the Fourth Proportional to 163.01, 243.90 and 94.56

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Solution

The fourth proportional to 163.01, 243.90 and 94.56 is: 141.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.01 : 243.90 = 94.56 : x
  2. Step 2: Convert to fraction form
    163.01/243.90 = 94.56/x
  3. Step 3: Cross multiply
    163.01x = 243.90 × 94.56
  4. Step 4: Simplify right side
    163.01x = 23,063.18
  5. Step 5: Solve for x
    x = 23,063.18/163.01
  6. Step 6: Final answer
    x = 141.49

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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.