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Finding the Third Proportional to 184.38 and 280.75

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Solution

The third proportional to 184.38 and 280.75 is: 427.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.38 : 280.75 = 280.75 : x
  2. Step 2: Convert to fraction form
    184.38/280.75 = 280.75/x
  3. Step 3: Cross multiply
    184.38x = 280.75 × 280.75
  4. Step 4: Simplify right side
    184.38x = 78,820.56
  5. Step 5: Solve for x
    x = 78,820.56/184.38
  6. Step 6: Final answer
    x = 427.50

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.