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Finding the Third Proportional to 99,663 and 149,220

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Solution

The third proportional to 99,663 and 149,220 is: 223,419.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,663 : 149,220 = 149,220 : x
  2. Step 2: Convert to fraction form
    99,663/149,220 = 149,220/x
  3. Step 3: Cross multiply
    99,663x = 149,220 × 149,220
  4. Step 4: Simplify right side
    99,663x = 22,266,608,400
  5. Step 5: Solve for x
    x = 22,266,608,400/99,663
  6. Step 6: Final answer
    x = 223,419.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.