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Finding the Fourth Proportional to 288,958.89, 398,716.68 and 181,452.81

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Solution

The fourth proportional to 288,958.89, 398,716.68 and 181,452.81 is: 250,375.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,958.89 : 398,716.68 = 181,452.81 : x
  2. Step 2: Convert to fraction form
    288,958.89/398,716.68 = 181,452.81/x
  3. Step 3: Cross multiply
    288,958.89x = 398,716.68 × 181,452.81
  4. Step 4: Simplify right side
    288,958.89x = 72,348,260,892.05
  5. Step 5: Solve for x
    x = 72,348,260,892.05/288,958.89
  6. Step 6: Final answer
    x = 250,375.62

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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.