Home / 297,834.80-411,015.20-161,868.75

Finding the Fourth Proportional to 297,834.80, 411,015.20 and 161,868.75

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Solution

The fourth proportional to 297,834.80, 411,015.20 and 161,868.75 is: 223,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,834.80 : 411,015.20 = 161,868.75 : x
  2. Step 2: Convert to fraction form
    297,834.80/411,015.20 = 161,868.75/x
  3. Step 3: Cross multiply
    297,834.80x = 411,015.20 × 161,868.75
  4. Step 4: Simplify right side
    297,834.80x = 66,530,515,845.66
  5. Step 5: Solve for x
    x = 66,530,515,845.66/297,834.80
  6. Step 6: Final answer
    x = 223,380.60

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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.