Home / 367,811.94-551,806.82-127,891.20

Finding the Fourth Proportional to 367,811.94, 551,806.82 and 127,891.20

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Solution

The fourth proportional to 367,811.94, 551,806.82 and 127,891.20 is: 191,867.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,811.94 : 551,806.82 = 127,891.20 : x
  2. Step 2: Convert to fraction form
    367,811.94/551,806.82 = 127,891.20/x
  3. Step 3: Cross multiply
    367,811.94x = 551,806.82 × 127,891.20
  4. Step 4: Simplify right side
    367,811.94x = 70,571,233,938.68
  5. Step 5: Solve for x
    x = 70,571,233,938.68/367,811.94
  6. Step 6: Final answer
    x = 191,867.71

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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.