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Finding the Fourth Proportional to 306,039.89, 422,301.51 and 176,958.83

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Solution

The fourth proportional to 306,039.89, 422,301.51 and 176,958.83 is: 244,183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,039.89 : 422,301.51 = 176,958.83 : x
  2. Step 2: Convert to fraction form
    306,039.89/422,301.51 = 176,958.83/x
  3. Step 3: Cross multiply
    306,039.89x = 422,301.51 × 176,958.83
  4. Step 4: Simplify right side
    306,039.89x = 74,729,982,172.59
  5. Step 5: Solve for x
    x = 74,729,982,172.59/306,039.89
  6. Step 6: Final answer
    x = 244,183.79

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1.5x scale

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.