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Finding the Fourth Proportional to 174.48, 238.86 and 173.28

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Solution

The fourth proportional to 174.48, 238.86 and 173.28 is: 237.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.48 : 238.86 = 173.28 : x
  2. Step 2: Convert to fraction form
    174.48/238.86 = 173.28/x
  3. Step 3: Cross multiply
    174.48x = 238.86 × 173.28
  4. Step 4: Simplify right side
    174.48x = 41,389.66
  5. Step 5: Solve for x
    x = 41,389.66/174.48
  6. Step 6: Final answer
    x = 237.22

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.