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Finding the Fourth Proportional to 225.44, 338.62 and 174.18

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Solution

The fourth proportional to 225.44, 338.62 and 174.18 is: 261.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.44 : 338.62 = 174.18 : x
  2. Step 2: Convert to fraction form
    225.44/338.62 = 174.18/x
  3. Step 3: Cross multiply
    225.44x = 338.62 × 174.18
  4. Step 4: Simplify right side
    225.44x = 58,980.83
  5. Step 5: Solve for x
    x = 58,980.83/225.44
  6. Step 6: Final answer
    x = 261.63

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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.