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Finding the Fourth Proportional to 327,711.60, 491,279.40 and 222,188.40

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Solution

The fourth proportional to 327,711.60, 491,279.40 and 222,188.40 is: 333,087.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,711.60 : 491,279.40 = 222,188.40 : x
  2. Step 2: Convert to fraction form
    327,711.60/491,279.40 = 222,188.40/x
  3. Step 3: Cross multiply
    327,711.60x = 491,279.40 × 222,188.40
  4. Step 4: Simplify right side
    327,711.60x = 109,156,583,838.96
  5. Step 5: Solve for x
    x = 109,156,583,838.96/327,711.60
  6. Step 6: Final answer
    x = 333,087.34

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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.