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Finding the Third Proportional to 311,817.50 and 502,182.50

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Solution

The third proportional to 311,817.50 and 502,182.50 is: 808,765.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,817.50 : 502,182.50 = 502,182.50 : x
  2. Step 2: Convert to fraction form
    311,817.50/502,182.50 = 502,182.50/x
  3. Step 3: Cross multiply
    311,817.50x = 502,182.50 × 502,182.50
  4. Step 4: Simplify right side
    311,817.50x = 252,187,263,306.25
  5. Step 5: Solve for x
    x = 252,187,263,306.25/311,817.50
  6. Step 6: Final answer
    x = 808,765.59

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.