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Finding the Third Proportional to 80,345 and 153,399

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Solution

The third proportional to 80,345 and 153,399 is: 292,877.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,345 : 153,399 = 153,399 : x
  2. Step 2: Convert to fraction form
    80,345/153,399 = 153,399/x
  3. Step 3: Cross multiply
    80,345x = 153,399 × 153,399
  4. Step 4: Simplify right side
    80,345x = 23,531,253,201
  5. Step 5: Solve for x
    x = 23,531,253,201/80,345
  6. Step 6: Final answer
    x = 292,877.63

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.