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Finding the Fourth Proportional to 347,203, 479,143.02 and 188,227

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Solution

The fourth proportional to 347,203, 479,143.02 and 188,227 is: 259,754.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,203 : 479,143.02 = 188,227 : x
  2. Step 2: Convert to fraction form
    347,203/479,143.02 = 188,227/x
  3. Step 3: Cross multiply
    347,203x = 479,143.02 × 188,227
  4. Step 4: Simplify right side
    347,203x = 90,187,653,225.54
  5. Step 5: Solve for x
    x = 90,187,653,225.54/347,203
  6. Step 6: Final answer
    x = 259,754.82

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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.