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Finding the Fourth Proportional to 267,261.80, 400,892.70 and 265,418.60

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Solution

The fourth proportional to 267,261.80, 400,892.70 and 265,418.60 is: 398,127.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,261.80 : 400,892.70 = 265,418.60 : x
  2. Step 2: Convert to fraction form
    267,261.80/400,892.70 = 265,418.60/x
  3. Step 3: Cross multiply
    267,261.80x = 400,892.70 × 265,418.60
  4. Step 4: Simplify right side
    267,261.80x = 106,404,379,184.22
  5. Step 5: Solve for x
    x = 106,404,379,184.22/267,261.80
  6. Step 6: Final answer
    x = 398,127.90

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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.