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Finding the Fourth Proportional to 155,481.58, 232,921.72 and 130,221.73

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Solution

The fourth proportional to 155,481.58, 232,921.72 and 130,221.73 is: 195,080.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,481.58 : 232,921.72 = 130,221.73 : x
  2. Step 2: Convert to fraction form
    155,481.58/232,921.72 = 130,221.73/x
  3. Step 3: Cross multiply
    155,481.58x = 232,921.72 × 130,221.73
  4. Step 4: Simplify right side
    155,481.58x = 30,331,469,332.98
  5. Step 5: Solve for x
    x = 30,331,469,332.98/155,481.58
  6. Step 6: Final answer
    x = 195,080.79

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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.