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Finding the Fourth Proportional to 331,650.48, 457,679.21 and 188,418.39

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Solution

The fourth proportional to 331,650.48, 457,679.21 and 188,418.39 is: 260,018.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,650.48 : 457,679.21 = 188,418.39 : x
  2. Step 2: Convert to fraction form
    331,650.48/457,679.21 = 188,418.39/x
  3. Step 3: Cross multiply
    331,650.48x = 457,679.21 × 188,418.39
  4. Step 4: Simplify right side
    331,650.48x = 86,235,179,884.67
  5. Step 5: Solve for x
    x = 86,235,179,884.67/331,650.48
  6. Step 6: Final answer
    x = 260,018.26

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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.