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Finding the Fourth Proportional to 376,415.54, 519,454.32 and 206,660.60

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Solution

The fourth proportional to 376,415.54, 519,454.32 and 206,660.60 is: 285,192.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,415.54 : 519,454.32 = 206,660.60 : x
  2. Step 2: Convert to fraction form
    376,415.54/519,454.32 = 206,660.60/x
  3. Step 3: Cross multiply
    376,415.54x = 519,454.32 × 206,660.60
  4. Step 4: Simplify right side
    376,415.54x = 107,350,741,443.79
  5. Step 5: Solve for x
    x = 107,350,741,443.79/376,415.54
  6. Step 6: Final answer
    x = 285,192.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.