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Finding the Third Proportional to 100,407.75 and 155,472.75

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Solution

The third proportional to 100,407.75 and 155,472.75 is: 240,736.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,407.75 : 155,472.75 = 155,472.75 : x
  2. Step 2: Convert to fraction form
    100,407.75/155,472.75 = 155,472.75/x
  3. Step 3: Cross multiply
    100,407.75x = 155,472.75 × 155,472.75
  4. Step 4: Simplify right side
    100,407.75x = 24,171,775,992.56
  5. Step 5: Solve for x
    x = 24,171,775,992.56/100,407.75
  6. Step 6: Final answer
    x = 240,736.16

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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.