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Finding the Fourth Proportional to 264,771.88, 397,268.57 and 115,138.06

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Solution

The fourth proportional to 264,771.88, 397,268.57 and 115,138.06 is: 172,755.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,771.88 : 397,268.57 = 115,138.06 : x
  2. Step 2: Convert to fraction form
    264,771.88/397,268.57 = 115,138.06/x
  3. Step 3: Cross multiply
    264,771.88x = 397,268.57 × 115,138.06
  4. Step 4: Simplify right side
    264,771.88x = 45,740,731,743.45
  5. Step 5: Solve for x
    x = 45,740,731,743.45/264,771.88
  6. Step 6: Final answer
    x = 172,755.25

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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.