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Finding the Third Proportional to 125.34 and 186.69

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Solution

The third proportional to 125.34 and 186.69 is: 278.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125.34 : 186.69 = 186.69 : x
  2. Step 2: Convert to fraction form
    125.34/186.69 = 186.69/x
  3. Step 3: Cross multiply
    125.34x = 186.69 × 186.69
  4. Step 4: Simplify right side
    125.34x = 34,852.22
  5. Step 5: Solve for x
    x = 34,852.22/125.34
  6. Step 6: Final answer
    x = 278.05

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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.