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Finding the Fourth Proportional to 186.44, 279.97 and 174.29

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Solution

The fourth proportional to 186.44, 279.97 and 174.29 is: 261.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.44 : 279.97 = 174.29 : x
  2. Step 2: Convert to fraction form
    186.44/279.97 = 174.29/x
  3. Step 3: Cross multiply
    186.44x = 279.97 × 174.29
  4. Step 4: Simplify right side
    186.44x = 48,795.97
  5. Step 5: Solve for x
    x = 48,795.97/186.44
  6. Step 6: Final answer
    x = 261.72

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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.