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Finding the Fourth Proportional to 345,794.20, 519,080.10 and 267,256.60

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Solution

The fourth proportional to 345,794.20, 519,080.10 and 267,256.60 is: 401,185.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,794.20 : 519,080.10 = 267,256.60 : x
  2. Step 2: Convert to fraction form
    345,794.20/519,080.10 = 267,256.60/x
  3. Step 3: Cross multiply
    345,794.20x = 519,080.10 × 267,256.60
  4. Step 4: Simplify right side
    345,794.20x = 138,727,582,653.66
  5. Step 5: Solve for x
    x = 138,727,582,653.66/345,794.20
  6. Step 6: Final answer
    x = 401,185.39

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1.5x scale

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.