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Finding the Third Proportional to 200,425.50 and 322,359.75

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Solution

The third proportional to 200,425.50 and 322,359.75 is: 518,475.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,425.50 : 322,359.75 = 322,359.75 : x
  2. Step 2: Convert to fraction form
    200,425.50/322,359.75 = 322,359.75/x
  3. Step 3: Cross multiply
    200,425.50x = 322,359.75 × 322,359.75
  4. Step 4: Simplify right side
    200,425.50x = 103,915,808,420.06
  5. Step 5: Solve for x
    x = 103,915,808,420.06/200,425.50
  6. Step 6: Final answer
    x = 518,475.98

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.