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Finding the Fourth Proportional to 235,380, 324,825.54 and 127,950

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Solution

The fourth proportional to 235,380, 324,825.54 and 127,950 is: 176,571.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,380 : 324,825.54 = 127,950 : x
  2. Step 2: Convert to fraction form
    235,380/324,825.54 = 127,950/x
  3. Step 3: Cross multiply
    235,380x = 324,825.54 × 127,950
  4. Step 4: Simplify right side
    235,380x = 41,561,427,843
  5. Step 5: Solve for x
    x = 41,561,427,843/235,380
  6. Step 6: Final answer
    x = 176,571.62

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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.