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Finding the Fourth Proportional to 288,150.92, 431,930.78 and 110,610.12

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Solution

The fourth proportional to 288,150.92, 431,930.78 and 110,610.12 is: 165,801.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,150.92 : 431,930.78 = 110,610.12 : x
  2. Step 2: Convert to fraction form
    288,150.92/431,930.78 = 110,610.12/x
  3. Step 3: Cross multiply
    288,150.92x = 431,930.78 × 110,610.12
  4. Step 4: Simplify right side
    288,150.92x = 47,775,915,407.49
  5. Step 5: Solve for x
    x = 47,775,915,407.49/288,150.92
  6. Step 6: Final answer
    x = 165,801.71

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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.