Home / 454,930.20-682,395.30-139,346.10

Finding the Fourth Proportional to 454,930.20, 682,395.30 and 139,346.10

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Solution

The fourth proportional to 454,930.20, 682,395.30 and 139,346.10 is: 209,019.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,930.20 : 682,395.30 = 139,346.10 : x
  2. Step 2: Convert to fraction form
    454,930.20/682,395.30 = 139,346.10/x
  3. Step 3: Cross multiply
    454,930.20x = 682,395.30 × 139,346.10
  4. Step 4: Simplify right side
    454,930.20x = 95,089,123,713.33
  5. Step 5: Solve for x
    x = 95,089,123,713.33/454,930.20
  6. Step 6: Final answer
    x = 209,019.15

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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.