Home / 209,305.26-313,562.82-123,660.57

Finding the Fourth Proportional to 209,305.26, 313,562.82 and 123,660.57

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Solution

The fourth proportional to 209,305.26, 313,562.82 and 123,660.57 is: 185,257.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,305.26 : 313,562.82 = 123,660.57 : x
  2. Step 2: Convert to fraction form
    209,305.26/313,562.82 = 123,660.57/x
  3. Step 3: Cross multiply
    209,305.26x = 313,562.82 × 123,660.57
  4. Step 4: Simplify right side
    209,305.26x = 38,775,358,691.60
  5. Step 5: Solve for x
    x = 38,775,358,691.60/209,305.26
  6. Step 6: Final answer
    x = 185,257.45

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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.