Home / 331,921.09-457,972.37-188,669.86

Finding the Fourth Proportional to 331,921.09, 457,972.37 and 188,669.86

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Solution

The fourth proportional to 331,921.09, 457,972.37 and 188,669.86 is: 260,319.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,921.09 : 457,972.37 = 188,669.86 : x
  2. Step 2: Convert to fraction form
    331,921.09/457,972.37 = 188,669.86/x
  3. Step 3: Cross multiply
    331,921.09x = 457,972.37 × 188,669.86
  4. Step 4: Simplify right side
    331,921.09x = 86,405,580,843.49
  5. Step 5: Solve for x
    x = 86,405,580,843.49/331,921.09
  6. Step 6: Final answer
    x = 260,319.65

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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.