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Finding the Third Proportional to 184.31 and 261.28

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Solution

The third proportional to 184.31 and 261.28 is: 370.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.31 : 261.28 = 261.28 : x
  2. Step 2: Convert to fraction form
    184.31/261.28 = 261.28/x
  3. Step 3: Cross multiply
    184.31x = 261.28 × 261.28
  4. Step 4: Simplify right side
    184.31x = 68,267.89
  5. Step 5: Solve for x
    x = 68,267.89/184.31
  6. Step 6: Final answer
    x = 370.39

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.