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Finding the Fourth Proportional to 377,469.97, 520,892.88 and 205,388.61

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Solution

The fourth proportional to 377,469.97, 520,892.88 and 205,388.61 is: 283,427.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,469.97 : 520,892.88 = 205,388.61 : x
  2. Step 2: Convert to fraction form
    377,469.97/520,892.88 = 205,388.61/x
  3. Step 3: Cross multiply
    377,469.97x = 520,892.88 × 205,388.61
  4. Step 4: Simplify right side
    377,469.97x = 106,985,464,582.10
  5. Step 5: Solve for x
    x = 106,985,464,582.10/377,469.97
  6. Step 6: Final answer
    x = 283,427.75

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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.