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Finding the Fourth Proportional to 163.48, 246.41 and 154.68

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Solution

The fourth proportional to 163.48, 246.41 and 154.68 is: 233.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.48 : 246.41 = 154.68 : x
  2. Step 2: Convert to fraction form
    163.48/246.41 = 154.68/x
  3. Step 3: Cross multiply
    163.48x = 246.41 × 154.68
  4. Step 4: Simplify right side
    163.48x = 38,114.70
  5. Step 5: Solve for x
    x = 38,114.70/163.48
  6. Step 6: Final answer
    x = 233.15

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.