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Finding the Third Proportional to 30,306.38 and 66,930.75

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Solution

The third proportional to 30,306.38 and 66,930.75 is: 147,814.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,306.38 : 66,930.75 = 66,930.75 : x
  2. Step 2: Convert to fraction form
    30,306.38/66,930.75 = 66,930.75/x
  3. Step 3: Cross multiply
    30,306.38x = 66,930.75 × 66,930.75
  4. Step 4: Simplify right side
    30,306.38x = 4,479,725,295.56
  5. Step 5: Solve for x
    x = 4,479,725,295.56/30,306.38
  6. Step 6: Final answer
    x = 147,814.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.