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Finding the Fourth Proportional to 185.96, 279.98 and 164.42

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Solution

The fourth proportional to 185.96, 279.98 and 164.42 is: 247.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.96 : 279.98 = 164.42 : x
  2. Step 2: Convert to fraction form
    185.96/279.98 = 164.42/x
  3. Step 3: Cross multiply
    185.96x = 279.98 × 164.42
  4. Step 4: Simplify right side
    185.96x = 46,034.31
  5. Step 5: Solve for x
    x = 46,034.31/185.96
  6. Step 6: Final answer
    x = 247.55

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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.