Home / 393,180.28-589,769.42-108,869.88

Finding the Fourth Proportional to 393,180.28, 589,769.42 and 108,869.88

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Solution

The fourth proportional to 393,180.28, 589,769.42 and 108,869.88 is: 163,304.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,180.28 : 589,769.42 = 108,869.88 : x
  2. Step 2: Convert to fraction form
    393,180.28/589,769.42 = 108,869.88/x
  3. Step 3: Cross multiply
    393,180.28x = 589,769.42 × 108,869.88
  4. Step 4: Simplify right side
    393,180.28x = 64,208,123,635.35
  5. Step 5: Solve for x
    x = 64,208,123,635.35/393,180.28
  6. Step 6: Final answer
    x = 163,304.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.