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Finding the Third Proportional to 99,888 and 219,460.50

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Solution

The third proportional to 99,888 and 219,460.50 is: 482,169.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,888 : 219,460.50 = 219,460.50 : x
  2. Step 2: Convert to fraction form
    99,888/219,460.50 = 219,460.50/x
  3. Step 3: Cross multiply
    99,888x = 219,460.50 × 219,460.50
  4. Step 4: Simplify right side
    99,888x = 48,162,911,060.25
  5. Step 5: Solve for x
    x = 48,162,911,060.25/99,888
  6. Step 6: Final answer
    x = 482,169.14

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.