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Finding the Third Proportional to 219,979.50 and 343,114.50

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Solution

The third proportional to 219,979.50 and 343,114.50 is: 535,175.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,979.50 : 343,114.50 = 343,114.50 : x
  2. Step 2: Convert to fraction form
    219,979.50/343,114.50 = 343,114.50/x
  3. Step 3: Cross multiply
    219,979.50x = 343,114.50 × 343,114.50
  4. Step 4: Simplify right side
    219,979.50x = 117,727,560,110.25
  5. Step 5: Solve for x
    x = 117,727,560,110.25/219,979.50
  6. Step 6: Final answer
    x = 535,175.14

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.