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Finding the Third Proportional to 200,535.75 and 428,132.25

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Solution

The third proportional to 200,535.75 and 428,132.25 is: 914,037.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,535.75 : 428,132.25 = 428,132.25 : x
  2. Step 2: Convert to fraction form
    200,535.75/428,132.25 = 428,132.25/x
  3. Step 3: Cross multiply
    200,535.75x = 428,132.25 × 428,132.25
  4. Step 4: Simplify right side
    200,535.75x = 183,297,223,490.06
  5. Step 5: Solve for x
    x = 183,297,223,490.06/200,535.75
  6. Step 6: Final answer
    x = 914,037.64

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.