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Finding the Fourth Proportional to 186.05, 254.88 and 179.13

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Solution

The fourth proportional to 186.05, 254.88 and 179.13 is: 245.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.05 : 254.88 = 179.13 : x
  2. Step 2: Convert to fraction form
    186.05/254.88 = 179.13/x
  3. Step 3: Cross multiply
    186.05x = 254.88 × 179.13
  4. Step 4: Simplify right side
    186.05x = 45,656.65
  5. Step 5: Solve for x
    x = 45,656.65/186.05
  6. Step 6: Final answer
    x = 245.40

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.