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Finding the Third Proportional to 100,303 and 155,810

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Solution

The third proportional to 100,303 and 155,810 is: 242,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,303 : 155,810 = 155,810 : x
  2. Step 2: Convert to fraction form
    100,303/155,810 = 155,810/x
  3. Step 3: Cross multiply
    100,303x = 155,810 × 155,810
  4. Step 4: Simplify right side
    100,303x = 24,276,756,100
  5. Step 5: Solve for x
    x = 24,276,756,100/100,303
  6. Step 6: Final answer
    x = 242,034.20

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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.