Home / 279,229.87-385,471.07-171,891.91

Finding the Fourth Proportional to 279,229.87, 385,471.07 and 171,891.91

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Solution

The fourth proportional to 279,229.87, 385,471.07 and 171,891.91 is: 237,293.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,229.87 : 385,471.07 = 171,891.91 : x
  2. Step 2: Convert to fraction form
    279,229.87/385,471.07 = 171,891.91/x
  3. Step 3: Cross multiply
    279,229.87x = 385,471.07 × 171,891.91
  4. Step 4: Simplify right side
    279,229.87x = 66,259,358,472.04
  5. Step 5: Solve for x
    x = 66,259,358,472.04/279,229.87
  6. Step 6: Final answer
    x = 237,293.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.