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Finding the Fourth Proportional to 180,004.80, 269,791.20 and 74,769.60

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Solution

The fourth proportional to 180,004.80, 269,791.20 and 74,769.60 is: 112,064.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,004.80 : 269,791.20 = 74,769.60 : x
  2. Step 2: Convert to fraction form
    180,004.80/269,791.20 = 74,769.60/x
  3. Step 3: Cross multiply
    180,004.80x = 269,791.20 × 74,769.60
  4. Step 4: Simplify right side
    180,004.80x = 20,172,180,107.52
  5. Step 5: Solve for x
    x = 20,172,180,107.52/180,004.80
  6. Step 6: Final answer
    x = 112,064.68

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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.