Home / 208,949.44-313,422-51,178.72

Finding the Fourth Proportional to 208,949.44, 313,422 and 51,178.72

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Solution

The fourth proportional to 208,949.44, 313,422 and 51,178.72 is: 76,767.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,949.44 : 313,422 = 51,178.72 : x
  2. Step 2: Convert to fraction form
    208,949.44/313,422 = 51,178.72/x
  3. Step 3: Cross multiply
    208,949.44x = 313,422 × 51,178.72
  4. Step 4: Simplify right side
    208,949.44x = 16,040,536,779.84
  5. Step 5: Solve for x
    x = 16,040,536,779.84/208,949.44
  6. Step 6: Final answer
    x = 76,767.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.