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Finding the Third Proportional to 79,621.50 and 159,243

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Solution

The third proportional to 79,621.50 and 159,243 is: 318,486

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,621.50 : 159,243 = 159,243 : x
  2. Step 2: Convert to fraction form
    79,621.50/159,243 = 159,243/x
  3. Step 3: Cross multiply
    79,621.50x = 159,243 × 159,243
  4. Step 4: Simplify right side
    79,621.50x = 25,358,333,049
  5. Step 5: Solve for x
    x = 25,358,333,049/79,621.50
  6. Step 6: Final answer
    x = 318,486

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Why These Related Problems?

These problems maintain the same ratio (2) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.