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Finding the Fourth Proportional to 381,760.70, 572,546.41 and 129,035.57

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Solution

The fourth proportional to 381,760.70, 572,546.41 and 129,035.57 is: 193,521.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,760.70 : 572,546.41 = 129,035.57 : x
  2. Step 2: Convert to fraction form
    381,760.70/572,546.41 = 129,035.57/x
  3. Step 3: Cross multiply
    381,760.70x = 572,546.41 × 129,035.57
  4. Step 4: Simplify right side
    381,760.70x = 73,878,852,365.80
  5. Step 5: Solve for x
    x = 73,878,852,365.80/381,760.70
  6. Step 6: Final answer
    x = 193,521.37

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1.5x scale

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.