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Finding the Fourth Proportional to 213,940.44, 295,268.90 and 123,278.76

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Solution

The fourth proportional to 213,940.44, 295,268.90 and 123,278.76 is: 170,142.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,940.44 : 295,268.90 = 123,278.76 : x
  2. Step 2: Convert to fraction form
    213,940.44/295,268.90 = 123,278.76/x
  3. Step 3: Cross multiply
    213,940.44x = 295,268.90 × 123,278.76
  4. Step 4: Simplify right side
    213,940.44x = 36,400,383,858.56
  5. Step 5: Solve for x
    x = 36,400,383,858.56/213,940.44
  6. Step 6: Final answer
    x = 170,142.61

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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.