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Finding the Fourth Proportional to 220,609.30, 331,314.90 and 132,035.80

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Solution

The fourth proportional to 220,609.30, 331,314.90 and 132,035.80 is: 198,293.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,609.30 : 331,314.90 = 132,035.80 : x
  2. Step 2: Convert to fraction form
    220,609.30/331,314.90 = 132,035.80/x
  3. Step 3: Cross multiply
    220,609.30x = 331,314.90 × 132,035.80
  4. Step 4: Simplify right side
    220,609.30x = 43,745,427,873.42
  5. Step 5: Solve for x
    x = 43,745,427,873.42/220,609.30
  6. Step 6: Final answer
    x = 198,293.67

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1.5x scale

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.