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Finding the Fourth Proportional to 377,101.31, 520,388.85 and 213,772.96

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Solution

The fourth proportional to 377,101.31, 520,388.85 and 213,772.96 is: 295,000.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,101.31 : 520,388.85 = 213,772.96 : x
  2. Step 2: Convert to fraction form
    377,101.31/520,388.85 = 213,772.96/x
  3. Step 3: Cross multiply
    377,101.31x = 520,388.85 × 213,772.96
  4. Step 4: Simplify right side
    377,101.31x = 111,245,067,731.22
  5. Step 5: Solve for x
    x = 111,245,067,731.22/377,101.31
  6. Step 6: Final answer
    x = 295,000.48

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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.