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Finding the Third Proportional to 306.84 and 577.41

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Solution

The third proportional to 306.84 and 577.41 is: 1,086.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    306.84 : 577.41 = 577.41 : x
  2. Step 2: Convert to fraction form
    306.84/577.41 = 577.41/x
  3. Step 3: Cross multiply
    306.84x = 577.41 × 577.41
  4. Step 4: Simplify right side
    306.84x = 333,397.98
  5. Step 5: Solve for x
    x = 333,397.98/306.84
  6. Step 6: Final answer
    x = 1,086.54

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Why These Related Problems?

These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.