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Finding the Third Proportional to 155,622 and 339,513

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Solution

The third proportional to 155,622 and 339,513 is: 740,699.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,622 : 339,513 = 339,513 : x
  2. Step 2: Convert to fraction form
    155,622/339,513 = 339,513/x
  3. Step 3: Cross multiply
    155,622x = 339,513 × 339,513
  4. Step 4: Simplify right side
    155,622x = 115,269,077,169
  5. Step 5: Solve for x
    x = 115,269,077,169/155,622
  6. Step 6: Final answer
    x = 740,699.11

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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.