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Finding the Third Proportional to 222,078 and 338,643

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Solution

The third proportional to 222,078 and 338,643 is: 516,391.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,078 : 338,643 = 338,643 : x
  2. Step 2: Convert to fraction form
    222,078/338,643 = 338,643/x
  3. Step 3: Cross multiply
    222,078x = 338,643 × 338,643
  4. Step 4: Simplify right side
    222,078x = 114,679,081,449
  5. Step 5: Solve for x
    x = 114,679,081,449/222,078
  6. Step 6: Final answer
    x = 516,391.00

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.