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Finding the Fourth Proportional to 376,573.67, 519,671.06 and 206,807.80

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Solution

The fourth proportional to 376,573.67, 519,671.06 and 206,807.80 is: 285,394.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,573.67 : 519,671.06 = 206,807.80 : x
  2. Step 2: Convert to fraction form
    376,573.67/519,671.06 = 206,807.80/x
  3. Step 3: Cross multiply
    376,573.67x = 519,671.06 × 206,807.80
  4. Step 4: Simplify right side
    376,573.67x = 107,472,027,860.11
  5. Step 5: Solve for x
    x = 107,472,027,860.11/376,573.67
  6. Step 6: Final answer
    x = 285,394.43

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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.