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Finding the Fourth Proportional to 327,713.60, 491,282.40 and 222,190.40

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Solution

The fourth proportional to 327,713.60, 491,282.40 and 222,190.40 is: 333,090.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,713.60 : 491,282.40 = 222,190.40 : x
  2. Step 2: Convert to fraction form
    327,713.60/491,282.40 = 222,190.40/x
  3. Step 3: Cross multiply
    327,713.60x = 491,282.40 × 222,190.40
  4. Step 4: Simplify right side
    327,713.60x = 109,158,232,968.96
  5. Step 5: Solve for x
    x = 109,158,232,968.96/327,713.60
  6. Step 6: Final answer
    x = 333,090.34

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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.