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Finding the Fourth Proportional to 186.36, 258.96 and 184.38

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Solution

The fourth proportional to 186.36, 258.96 and 184.38 is: 256.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.36 : 258.96 = 184.38 : x
  2. Step 2: Convert to fraction form
    186.36/258.96 = 184.38/x
  3. Step 3: Cross multiply
    186.36x = 258.96 × 184.38
  4. Step 4: Simplify right side
    186.36x = 47,747.04
  5. Step 5: Solve for x
    x = 47,747.04/186.36
  6. Step 6: Final answer
    x = 256.21

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.