Home / 306,090.27-422,610.39-273,724.20

Finding the Fourth Proportional to 306,090.27, 422,610.39 and 273,724.20

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Solution

The fourth proportional to 306,090.27, 422,610.39 and 273,724.20 is: 377,923.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,090.27 : 422,610.39 = 273,724.20 : x
  2. Step 2: Convert to fraction form
    306,090.27/422,610.39 = 273,724.20/x
  3. Step 3: Cross multiply
    306,090.27x = 422,610.39 × 273,724.20
  4. Step 4: Simplify right side
    306,090.27x = 115,678,690,914.44
  5. Step 5: Solve for x
    x = 115,678,690,914.44/306,090.27
  6. Step 6: Final answer
    x = 377,923.45

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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.