Home / 209,306.26-313,564.32-123,661.57

Finding the Fourth Proportional to 209,306.26, 313,564.32 and 123,661.57

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Solution

The fourth proportional to 209,306.26, 313,564.32 and 123,661.57 is: 185,258.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,306.26 : 313,564.32 = 123,661.57 : x
  2. Step 2: Convert to fraction form
    209,306.26/313,564.32 = 123,661.57/x
  3. Step 3: Cross multiply
    209,306.26x = 313,564.32 × 123,661.57
  4. Step 4: Simplify right side
    209,306.26x = 38,775,856,107.18
  5. Step 5: Solve for x
    x = 38,775,856,107.18/209,306.26
  6. Step 6: Final answer
    x = 185,258.94

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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.