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Finding the Fourth Proportional to 274,168.56, 378,350.46 and 153,310.08

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Solution

The fourth proportional to 274,168.56, 378,350.46 and 153,310.08 is: 211,566.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,168.56 : 378,350.46 = 153,310.08 : x
  2. Step 2: Convert to fraction form
    274,168.56/378,350.46 = 153,310.08/x
  3. Step 3: Cross multiply
    274,168.56x = 378,350.46 × 153,310.08
  4. Step 4: Simplify right side
    274,168.56x = 58,004,939,290.64
  5. Step 5: Solve for x
    x = 58,004,939,290.64/274,168.56
  6. Step 6: Final answer
    x = 211,566.71

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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.