Home / 220,057.46-303,632.58-129,380.34

Finding the Fourth Proportional to 220,057.46, 303,632.58 and 129,380.34

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Solution

The fourth proportional to 220,057.46, 303,632.58 and 129,380.34 is: 178,517.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,057.46 : 303,632.58 = 129,380.34 : x
  2. Step 2: Convert to fraction form
    220,057.46/303,632.58 = 129,380.34/x
  3. Step 3: Cross multiply
    220,057.46x = 303,632.58 × 129,380.34
  4. Step 4: Simplify right side
    220,057.46x = 39,284,086,435.48
  5. Step 5: Solve for x
    x = 39,284,086,435.48/220,057.46
  6. Step 6: Final answer
    x = 178,517.40

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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.