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Finding the Fourth Proportional to 275,336.28, 380,033.90 and 188,156.72

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Solution

The fourth proportional to 275,336.28, 380,033.90 and 188,156.72 is: 259,704.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,336.28 : 380,033.90 = 188,156.72 : x
  2. Step 2: Convert to fraction form
    275,336.28/380,033.90 = 188,156.72/x
  3. Step 3: Cross multiply
    275,336.28x = 380,033.90 × 188,156.72
  4. Step 4: Simplify right side
    275,336.28x = 71,505,932,112.81
  5. Step 5: Solve for x
    x = 71,505,932,112.81/275,336.28
  6. Step 6: Final answer
    x = 259,704.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.