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Finding the Fourth Proportional to 150,439.64, 225,659.70 and 38,119.88

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Solution

The fourth proportional to 150,439.64, 225,659.70 and 38,119.88 is: 57,179.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,439.64 : 225,659.70 = 38,119.88 : x
  2. Step 2: Convert to fraction form
    150,439.64/225,659.70 = 38,119.88/x
  3. Step 3: Cross multiply
    150,439.64x = 225,659.70 × 38,119.88
  4. Step 4: Simplify right side
    150,439.64x = 8,602,120,684.84
  5. Step 5: Solve for x
    x = 8,602,120,684.84/150,439.64
  6. Step 6: Final answer
    x = 57,179.88

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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.