Home / 267,629.88-401,445.56-90,261.48

Finding the Fourth Proportional to 267,629.88, 401,445.56 and 90,261.48

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Solution

The fourth proportional to 267,629.88, 401,445.56 and 90,261.48 is: 135,392.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,629.88 : 401,445.56 = 90,261.48 : x
  2. Step 2: Convert to fraction form
    267,629.88/401,445.56 = 90,261.48/x
  3. Step 3: Cross multiply
    267,629.88x = 401,445.56 × 90,261.48
  4. Step 4: Simplify right side
    267,629.88x = 36,235,070,385.03
  5. Step 5: Solve for x
    x = 36,235,070,385.03/267,629.88
  6. Step 6: Final answer
    x = 135,392.47

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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.