Home / 345,724.20-518,975.10-267,186.60

Finding the Fourth Proportional to 345,724.20, 518,975.10 and 267,186.60

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Solution

The fourth proportional to 345,724.20, 518,975.10 and 267,186.60 is: 401,080.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,724.20 : 518,975.10 = 267,186.60 : x
  2. Step 2: Convert to fraction form
    345,724.20/518,975.10 = 267,186.60/x
  3. Step 3: Cross multiply
    345,724.20x = 518,975.10 × 267,186.60
  4. Step 4: Simplify right side
    345,724.20x = 138,663,192,453.66
  5. Step 5: Solve for x
    x = 138,663,192,453.66/345,724.20
  6. Step 6: Final answer
    x = 401,080.38

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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.