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Finding the Fourth Proportional to 331,671.67, 457,719.14 and 188,455.97

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Solution

The fourth proportional to 331,671.67, 457,719.14 and 188,455.97 is: 260,076.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,671.67 : 457,719.14 = 188,455.97 : x
  2. Step 2: Convert to fraction form
    331,671.67/457,719.14 = 188,455.97/x
  3. Step 3: Cross multiply
    331,671.67x = 457,719.14 × 188,455.97
  4. Step 4: Simplify right side
    331,671.67x = 86,259,904,516.27
  5. Step 5: Solve for x
    x = 86,259,904,516.27/331,671.67
  6. Step 6: Final answer
    x = 260,076.19

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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.