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Finding the Third Proportional to 429.94 and 683.34

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Solution

The third proportional to 429.94 and 683.34 is: 1,086.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    429.94 : 683.34 = 683.34 : x
  2. Step 2: Convert to fraction form
    429.94/683.34 = 683.34/x
  3. Step 3: Cross multiply
    429.94x = 683.34 × 683.34
  4. Step 4: Simplify right side
    429.94x = 466,958.68
  5. Step 5: Solve for x
    x = 466,958.68/429.94
  6. Step 6: Final answer
    x = 1,086.11

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.