Home / 377,815.50-521,385.39-208,049.22

Finding the Fourth Proportional to 377,815.50, 521,385.39 and 208,049.22

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Solution

The fourth proportional to 377,815.50, 521,385.39 and 208,049.22 is: 287,107.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,815.50 : 521,385.39 = 208,049.22 : x
  2. Step 2: Convert to fraction form
    377,815.50/521,385.39 = 208,049.22/x
  3. Step 3: Cross multiply
    377,815.50x = 521,385.39 × 208,049.22
  4. Step 4: Simplify right side
    377,815.50x = 108,473,823,708.90
  5. Step 5: Solve for x
    x = 108,473,823,708.90/377,815.50
  6. Step 6: Final answer
    x = 287,107.92

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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.