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Finding the Third Proportional to 100,433 and 155,508

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Solution

The third proportional to 100,433 and 155,508 is: 240,784.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,433 : 155,508 = 155,508 : x
  2. Step 2: Convert to fraction form
    100,433/155,508 = 155,508/x
  3. Step 3: Cross multiply
    100,433x = 155,508 × 155,508
  4. Step 4: Simplify right side
    100,433x = 24,182,738,064
  5. Step 5: Solve for x
    x = 24,182,738,064/100,433
  6. Step 6: Final answer
    x = 240,784.78

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.