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Finding the Fourth Proportional to 392,601.68, 541,806.60 and 222,851.60

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Solution

The fourth proportional to 392,601.68, 541,806.60 and 222,851.60 is: 307,544.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,601.68 : 541,806.60 = 222,851.60 : x
  2. Step 2: Convert to fraction form
    392,601.68/541,806.60 = 222,851.60/x
  3. Step 3: Cross multiply
    392,601.68x = 541,806.60 × 222,851.60
  4. Step 4: Simplify right side
    392,601.68x = 120,742,467,700.56
  5. Step 5: Solve for x
    x = 120,742,467,700.56/392,601.68
  6. Step 6: Final answer
    x = 307,544.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.