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Finding the Third Proportional to 157,816.50 and 221,981.25

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Solution

The third proportional to 157,816.50 and 221,981.25 is: 312,233.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,816.50 : 221,981.25 = 221,981.25 : x
  2. Step 2: Convert to fraction form
    157,816.50/221,981.25 = 221,981.25/x
  3. Step 3: Cross multiply
    157,816.50x = 221,981.25 × 221,981.25
  4. Step 4: Simplify right side
    157,816.50x = 49,275,675,351.56
  5. Step 5: Solve for x
    x = 49,275,675,351.56/157,816.50
  6. Step 6: Final answer
    x = 312,233.99

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.