Home / 279,216.41-418,824.68-195,140.79

Finding the Fourth Proportional to 279,216.41, 418,824.68 and 195,140.79

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Solution

The fourth proportional to 279,216.41, 418,824.68 and 195,140.79 is: 292,711.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,216.41 : 418,824.68 = 195,140.79 : x
  2. Step 2: Convert to fraction form
    279,216.41/418,824.68 = 195,140.79/x
  3. Step 3: Cross multiply
    279,216.41x = 418,824.68 × 195,140.79
  4. Step 4: Simplify right side
    279,216.41x = 81,729,777,950.99
  5. Step 5: Solve for x
    x = 81,729,777,950.99/279,216.41
  6. Step 6: Final answer
    x = 292,711.23

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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.