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Finding the Third Proportional to 217,681.50 and 336,228

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Solution

The third proportional to 217,681.50 and 336,228 is: 519,333.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,681.50 : 336,228 = 336,228 : x
  2. Step 2: Convert to fraction form
    217,681.50/336,228 = 336,228/x
  3. Step 3: Cross multiply
    217,681.50x = 336,228 × 336,228
  4. Step 4: Simplify right side
    217,681.50x = 113,049,267,984
  5. Step 5: Solve for x
    x = 113,049,267,984/217,681.50
  6. Step 6: Final answer
    x = 519,333.37

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.