Home / 454,949.11-682,399.02-139,406.94

Finding the Fourth Proportional to 454,949.11, 682,399.02 and 139,406.94

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Solution

The fourth proportional to 454,949.11, 682,399.02 and 139,406.94 is: 209,102.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,949.11 : 682,399.02 = 139,406.94 : x
  2. Step 2: Convert to fraction form
    454,949.11/682,399.02 = 139,406.94/x
  3. Step 3: Cross multiply
    454,949.11x = 682,399.02 × 139,406.94
  4. Step 4: Simplify right side
    454,949.11x = 95,131,159,237.20
  5. Step 5: Solve for x
    x = 95,131,159,237.20/454,949.11
  6. Step 6: Final answer
    x = 209,102.86

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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.