Home / 377,879.20-521,497.11-208,113.46

Finding the Fourth Proportional to 377,879.20, 521,497.11 and 208,113.46

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Solution

The fourth proportional to 377,879.20, 521,497.11 and 208,113.46 is: 287,209.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,879.20 : 521,497.11 = 208,113.46 : x
  2. Step 2: Convert to fraction form
    377,879.20/521,497.11 = 208,113.46/x
  3. Step 3: Cross multiply
    377,879.20x = 521,497.11 × 208,113.46
  4. Step 4: Simplify right side
    377,879.20x = 108,530,567,942.10
  5. Step 5: Solve for x
    x = 108,530,567,942.10/377,879.20
  6. Step 6: Final answer
    x = 287,209.69

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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.