Home / 214,975.60-322,609.20-139,912.90

Finding the Fourth Proportional to 214,975.60, 322,609.20 and 139,912.90

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Solution

The fourth proportional to 214,975.60, 322,609.20 and 139,912.90 is: 209,964.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,975.60 : 322,609.20 = 139,912.90 : x
  2. Step 2: Convert to fraction form
    214,975.60/322,609.20 = 139,912.90/x
  3. Step 3: Cross multiply
    214,975.60x = 322,609.20 × 139,912.90
  4. Step 4: Simplify right side
    214,975.60x = 45,137,188,738.68
  5. Step 5: Solve for x
    x = 45,137,188,738.68/214,975.60
  6. Step 6: Final answer
    x = 209,964.24

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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.