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Finding the Fourth Proportional to 173.68, 239.46 and 118.26

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Solution

The fourth proportional to 173.68, 239.46 and 118.26 is: 163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.68 : 239.46 = 118.26 : x
  2. Step 2: Convert to fraction form
    173.68/239.46 = 118.26/x
  3. Step 3: Cross multiply
    173.68x = 239.46 × 118.26
  4. Step 4: Simplify right side
    173.68x = 28,318.54
  5. Step 5: Solve for x
    x = 28,318.54/173.68
  6. Step 6: Final answer
    x = 163.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.