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Finding the Fourth Proportional to 186.70, 280.26 and 182.80

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Solution

The fourth proportional to 186.70, 280.26 and 182.80 is: 274.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.70 : 280.26 = 182.80 : x
  2. Step 2: Convert to fraction form
    186.70/280.26 = 182.80/x
  3. Step 3: Cross multiply
    186.70x = 280.26 × 182.80
  4. Step 4: Simplify right side
    186.70x = 51,231.53
  5. Step 5: Solve for x
    x = 51,231.53/186.70
  6. Step 6: Final answer
    x = 274.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.