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Finding the Fourth Proportional to 186.89, 278.64 and 182.16

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Solution

The fourth proportional to 186.89, 278.64 and 182.16 is: 271.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.89 : 278.64 = 182.16 : x
  2. Step 2: Convert to fraction form
    186.89/278.64 = 182.16/x
  3. Step 3: Cross multiply
    186.89x = 278.64 × 182.16
  4. Step 4: Simplify right side
    186.89x = 50,757.06
  5. Step 5: Solve for x
    x = 50,757.06/186.89
  6. Step 6: Final answer
    x = 271.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.