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Finding the Fourth Proportional to 303,860.28, 419,305.62 and 167,892.72

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Solution

The fourth proportional to 303,860.28, 419,305.62 and 167,892.72 is: 231,680.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,860.28 : 419,305.62 = 167,892.72 : x
  2. Step 2: Convert to fraction form
    303,860.28/419,305.62 = 167,892.72/x
  3. Step 3: Cross multiply
    303,860.28x = 419,305.62 × 167,892.72
  4. Step 4: Simplify right side
    303,860.28x = 70,398,361,053.09
  5. Step 5: Solve for x
    x = 70,398,361,053.09/303,860.28
  6. Step 6: Final answer
    x = 231,680.04

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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.