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Finding the Third Proportional to 155,719.97 and 339,580.69

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Solution

The third proportional to 155,719.97 and 339,580.69 is: 740,528.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,719.97 : 339,580.69 = 339,580.69 : x
  2. Step 2: Convert to fraction form
    155,719.97/339,580.69 = 339,580.69/x
  3. Step 3: Cross multiply
    155,719.97x = 339,580.69 × 339,580.69
  4. Step 4: Simplify right side
    155,719.97x = 115,315,043,322.97
  5. Step 5: Solve for x
    x = 115,315,043,322.97/155,719.97
  6. Step 6: Final answer
    x = 740,528.30

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.