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Finding the Third Proportional to 155,502 and 339,102

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Solution

The third proportional to 155,502 and 339,102 is: 739,477.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,502 : 339,102 = 339,102 : x
  2. Step 2: Convert to fraction form
    155,502/339,102 = 339,102/x
  3. Step 3: Cross multiply
    155,502x = 339,102 × 339,102
  4. Step 4: Simplify right side
    155,502x = 114,990,166,404
  5. Step 5: Solve for x
    x = 114,990,166,404/155,502
  6. Step 6: Final answer
    x = 739,477.09

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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.