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Finding the Third Proportional to 306.12 and 484.10

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Solution

The third proportional to 306.12 and 484.10 is: 765.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    306.12 : 484.10 = 484.10 : x
  2. Step 2: Convert to fraction form
    306.12/484.10 = 484.10/x
  3. Step 3: Cross multiply
    306.12x = 484.10 × 484.10
  4. Step 4: Simplify right side
    306.12x = 234,354.32
  5. Step 5: Solve for x
    x = 234,354.32/306.12
  6. Step 6: Final answer
    x = 765.56

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.