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Finding the Third Proportional to 188,650.50 and 285,405.75

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Solution

The third proportional to 188,650.50 and 285,405.75 is: 431,784.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,650.50 : 285,405.75 = 285,405.75 : x
  2. Step 2: Convert to fraction form
    188,650.50/285,405.75 = 285,405.75/x
  3. Step 3: Cross multiply
    188,650.50x = 285,405.75 × 285,405.75
  4. Step 4: Simplify right side
    188,650.50x = 81,456,442,133.06
  5. Step 5: Solve for x
    x = 81,456,442,133.06/188,650.50
  6. Step 6: Final answer
    x = 431,784.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.