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Finding the Fourth Proportional to 186.99, 279.07 and 182.13

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Solution

The fourth proportional to 186.99, 279.07 and 182.13 is: 271.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.99 : 279.07 = 182.13 : x
  2. Step 2: Convert to fraction form
    186.99/279.07 = 182.13/x
  3. Step 3: Cross multiply
    186.99x = 279.07 × 182.13
  4. Step 4: Simplify right side
    186.99x = 50,825.52
  5. Step 5: Solve for x
    x = 50,825.52/186.99
  6. Step 6: Final answer
    x = 271.81

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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.