Home / 543,629.43-815,380.78-144,301.23

Finding the Fourth Proportional to 543,629.43, 815,380.78 and 144,301.23

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Solution

The fourth proportional to 543,629.43, 815,380.78 and 144,301.23 is: 216,435.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,629.43 : 815,380.78 = 144,301.23 : x
  2. Step 2: Convert to fraction form
    543,629.43/815,380.78 = 144,301.23/x
  3. Step 3: Cross multiply
    543,629.43x = 815,380.78 × 144,301.23
  4. Step 4: Simplify right side
    543,629.43x = 117,660,449,472.36
  5. Step 5: Solve for x
    x = 117,660,449,472.36/543,629.43
  6. Step 6: Final answer
    x = 216,435.03

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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.