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Finding the Fourth Proportional to 375,221.52, 517,811.40 and 205,471.44

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Solution

The fourth proportional to 375,221.52, 517,811.40 and 205,471.44 is: 283,553.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,221.52 : 517,811.40 = 205,471.44 : x
  2. Step 2: Convert to fraction form
    375,221.52/517,811.40 = 205,471.44/x
  3. Step 3: Cross multiply
    375,221.52x = 517,811.40 × 205,471.44
  4. Step 4: Simplify right side
    375,221.52x = 106,395,454,006.42
  5. Step 5: Solve for x
    x = 106,395,454,006.42/375,221.52
  6. Step 6: Final answer
    x = 283,553.71

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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.