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Finding the Fourth Proportional to 180,801.60, 271,785.60 and 128,572.80

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Solution

The fourth proportional to 180,801.60, 271,785.60 and 128,572.80 is: 193,273.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,801.60 : 271,785.60 = 128,572.80 : x
  2. Step 2: Convert to fraction form
    180,801.60/271,785.60 = 128,572.80/x
  3. Step 3: Cross multiply
    180,801.60x = 271,785.60 × 128,572.80
  4. Step 4: Simplify right side
    180,801.60x = 34,944,235,591.68
  5. Step 5: Solve for x
    x = 34,944,235,591.68/180,801.60
  6. Step 6: Final answer
    x = 193,273.93

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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.