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Finding the Third Proportional to 102,811.50 and 154,219.50

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Solution

The third proportional to 102,811.50 and 154,219.50 is: 231,332.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,811.50 : 154,219.50 = 154,219.50 : x
  2. Step 2: Convert to fraction form
    102,811.50/154,219.50 = 154,219.50/x
  3. Step 3: Cross multiply
    102,811.50x = 154,219.50 × 154,219.50
  4. Step 4: Simplify right side
    102,811.50x = 23,783,654,180.25
  5. Step 5: Solve for x
    x = 23,783,654,180.25/102,811.50
  6. Step 6: Final answer
    x = 231,332.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.