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Finding the Fourth Proportional to 209,222.97, 313,716.33 and 191,369.88

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Solution

The fourth proportional to 209,222.97, 313,716.33 and 191,369.88 is: 286,946.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,222.97 : 313,716.33 = 191,369.88 : x
  2. Step 2: Convert to fraction form
    209,222.97/313,716.33 = 191,369.88/x
  3. Step 3: Cross multiply
    209,222.97x = 313,716.33 × 191,369.88
  4. Step 4: Simplify right side
    209,222.97x = 60,035,856,426.14
  5. Step 5: Solve for x
    x = 60,035,856,426.14/209,222.97
  6. Step 6: Final answer
    x = 286,946.77

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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.