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Finding the Fourth Proportional to 255,874.80, 384,004.20 and 131,151.60

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Solution

The fourth proportional to 255,874.80, 384,004.20 and 131,151.60 is: 196,825.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,874.80 : 384,004.20 = 131,151.60 : x
  2. Step 2: Convert to fraction form
    255,874.80/384,004.20 = 131,151.60/x
  3. Step 3: Cross multiply
    255,874.80x = 384,004.20 × 131,151.60
  4. Step 4: Simplify right side
    255,874.80x = 50,362,765,236.72
  5. Step 5: Solve for x
    x = 50,362,765,236.72/255,874.80
  6. Step 6: Final answer
    x = 196,825.81

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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.