Home / 202,861.40-279,141.60-196,698.12

Finding the Fourth Proportional to 202,861.40, 279,141.60 and 196,698.12

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Solution

The fourth proportional to 202,861.40, 279,141.60 and 196,698.12 is: 270,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,861.40 : 279,141.60 = 196,698.12 : x
  2. Step 2: Convert to fraction form
    202,861.40/279,141.60 = 196,698.12/x
  3. Step 3: Cross multiply
    202,861.40x = 279,141.60 × 196,698.12
  4. Step 4: Simplify right side
    202,861.40x = 54,906,627,933.79
  5. Step 5: Solve for x
    x = 54,906,627,933.79/202,861.40
  6. Step 6: Final answer
    x = 270,660.80

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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.