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Finding the Fourth Proportional to 392,440.80, 588,555.81 and 108,063.66

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Solution

The fourth proportional to 392,440.80, 588,555.81 and 108,063.66 is: 162,066.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,440.80 : 588,555.81 = 108,063.66 : x
  2. Step 2: Convert to fraction form
    392,440.80/588,555.81 = 108,063.66/x
  3. Step 3: Cross multiply
    392,440.80x = 588,555.81 × 108,063.66
  4. Step 4: Simplify right side
    392,440.80x = 63,601,493,543.54
  5. Step 5: Solve for x
    x = 63,601,493,543.54/392,440.80
  6. Step 6: Final answer
    x = 162,066.46

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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.