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Finding the Third Proportional to 99,886.50 and 218,180.25

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Solution

The third proportional to 99,886.50 and 218,180.25 is: 476,567.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,886.50 : 218,180.25 = 218,180.25 : x
  2. Step 2: Convert to fraction form
    99,886.50/218,180.25 = 218,180.25/x
  3. Step 3: Cross multiply
    99,886.50x = 218,180.25 × 218,180.25
  4. Step 4: Simplify right side
    99,886.50x = 47,602,621,490.06
  5. Step 5: Solve for x
    x = 47,602,621,490.06/99,886.50
  6. Step 6: Final answer
    x = 476,567.12

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.