Home / 263,103.40-394,395.90-130,004.20

Finding the Fourth Proportional to 263,103.40, 394,395.90 and 130,004.20

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Solution

The fourth proportional to 263,103.40, 394,395.90 and 130,004.20 is: 194,878.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,103.40 : 394,395.90 = 130,004.20 : x
  2. Step 2: Convert to fraction form
    263,103.40/394,395.90 = 130,004.20/x
  3. Step 3: Cross multiply
    263,103.40x = 394,395.90 × 130,004.20
  4. Step 4: Simplify right side
    263,103.40x = 51,273,123,462.78
  5. Step 5: Solve for x
    x = 51,273,123,462.78/263,103.40
  6. Step 6: Final answer
    x = 194,878.22

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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.