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Finding the Third Proportional to 100,402 and 155,549

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Solution

The third proportional to 100,402 and 155,549 is: 240,986.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,402 : 155,549 = 155,549 : x
  2. Step 2: Convert to fraction form
    100,402/155,549 = 155,549/x
  3. Step 3: Cross multiply
    100,402x = 155,549 × 155,549
  4. Step 4: Simplify right side
    100,402x = 24,195,491,401
  5. Step 5: Solve for x
    x = 24,195,491,401/100,402
  6. Step 6: Final answer
    x = 240,986.15

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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.