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Finding the Third Proportional to 100,587.56 and 218,475.38

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Solution

The third proportional to 100,587.56 and 218,475.38 is: 474,526.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,587.56 : 218,475.38 = 218,475.38 : x
  2. Step 2: Convert to fraction form
    100,587.56/218,475.38 = 218,475.38/x
  3. Step 3: Cross multiply
    100,587.56x = 218,475.38 × 218,475.38
  4. Step 4: Simplify right side
    100,587.56x = 47,731,489,481.39
  5. Step 5: Solve for x
    x = 47,731,489,481.39/100,587.56
  6. Step 6: Final answer
    x = 474,526.75

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.