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Finding the Third Proportional to 100,342 and 155,454

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Solution

The third proportional to 100,342 and 155,454 is: 240,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,342 : 155,454 = 155,454 : x
  2. Step 2: Convert to fraction form
    100,342/155,454 = 155,454/x
  3. Step 3: Cross multiply
    100,342x = 155,454 × 155,454
  4. Step 4: Simplify right side
    100,342x = 24,165,946,116
  5. Step 5: Solve for x
    x = 24,165,946,116/100,342
  6. Step 6: Final answer
    x = 240,835.80

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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.