Home / 377,863.20-521,447.76-208,093.68

Finding the Fourth Proportional to 377,863.20, 521,447.76 and 208,093.68

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Solution

The fourth proportional to 377,863.20, 521,447.76 and 208,093.68 is: 287,167.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,863.20 : 521,447.76 = 208,093.68 : x
  2. Step 2: Convert to fraction form
    377,863.20/521,447.76 = 208,093.68/x
  3. Step 3: Cross multiply
    377,863.20x = 521,447.76 × 208,093.68
  4. Step 4: Simplify right side
    377,863.20x = 108,509,983,306.16
  5. Step 5: Solve for x
    x = 108,509,983,306.16/377,863.20
  6. Step 6: Final answer
    x = 287,167.38

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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.