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Finding the Fourth Proportional to 375,192.05, 517,761.48 and 203,105.61

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Solution

The fourth proportional to 375,192.05, 517,761.48 and 203,105.61 is: 280,283.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,192.05 : 517,761.48 = 203,105.61 : x
  2. Step 2: Convert to fraction form
    375,192.05/517,761.48 = 203,105.61/x
  3. Step 3: Cross multiply
    375,192.05x = 517,761.48 × 203,105.61
  4. Step 4: Simplify right side
    375,192.05x = 105,160,259,148.86
  5. Step 5: Solve for x
    x = 105,160,259,148.86/375,192.05
  6. Step 6: Final answer
    x = 280,283.82

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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.