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Finding the Third Proportional to 195,421.50 and 428,251.50

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Solution

The third proportional to 195,421.50 and 428,251.50 is: 938,480.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,421.50 : 428,251.50 = 428,251.50 : x
  2. Step 2: Convert to fraction form
    195,421.50/428,251.50 = 428,251.50/x
  3. Step 3: Cross multiply
    195,421.50x = 428,251.50 × 428,251.50
  4. Step 4: Simplify right side
    195,421.50x = 183,399,347,252.25
  5. Step 5: Solve for x
    x = 183,399,347,252.25/195,421.50
  6. Step 6: Final answer
    x = 938,480.91

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.