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Finding the Fourth Proportional to 377,879.06, 521,462.45 and 205,793.15

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Solution

The fourth proportional to 377,879.06, 521,462.45 and 205,793.15 is: 283,988.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,879.06 : 521,462.45 = 205,793.15 : x
  2. Step 2: Convert to fraction form
    377,879.06/521,462.45 = 205,793.15/x
  3. Step 3: Cross multiply
    377,879.06x = 521,462.45 × 205,793.15
  4. Step 4: Simplify right side
    377,879.06x = 107,313,396,555.94
  5. Step 5: Solve for x
    x = 107,313,396,555.94/377,879.06
  6. Step 6: Final answer
    x = 283,988.74

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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.