Home / 208,991.62-313,499.28-66,849.38

Finding the Fourth Proportional to 208,991.62, 313,499.28 and 66,849.38

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Solution

The fourth proportional to 208,991.62, 313,499.28 and 66,849.38 is: 100,277.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,991.62 : 313,499.28 = 66,849.38 : x
  2. Step 2: Convert to fraction form
    208,991.62/313,499.28 = 66,849.38/x
  3. Step 3: Cross multiply
    208,991.62x = 313,499.28 × 66,849.38
  4. Step 4: Simplify right side
    208,991.62x = 20,957,232,498.45
  5. Step 5: Solve for x
    x = 20,957,232,498.45/208,991.62
  6. Step 6: Final answer
    x = 100,277.86

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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.