Home / 234,919.72-324,189.60-139,445.56

Finding the Fourth Proportional to 234,919.72, 324,189.60 and 139,445.56

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Solution

The fourth proportional to 234,919.72, 324,189.60 and 139,445.56 is: 192,435.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,919.72 : 324,189.60 = 139,445.56 : x
  2. Step 2: Convert to fraction form
    234,919.72/324,189.60 = 139,445.56/x
  3. Step 3: Cross multiply
    234,919.72x = 324,189.60 × 139,445.56
  4. Step 4: Simplify right side
    234,919.72x = 45,206,800,318.18
  5. Step 5: Solve for x
    x = 45,206,800,318.18/234,919.72
  6. Step 6: Final answer
    x = 192,435.10

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1.5x scale

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.