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Finding the Fourth Proportional to 255,383.37, 352,375.59 and 147,947

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Solution

The fourth proportional to 255,383.37, 352,375.59 and 147,947 is: 204,135.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,383.37 : 352,375.59 = 147,947 : x
  2. Step 2: Convert to fraction form
    255,383.37/352,375.59 = 147,947/x
  3. Step 3: Cross multiply
    255,383.37x = 352,375.59 × 147,947
  4. Step 4: Simplify right side
    255,383.37x = 52,132,911,413.73
  5. Step 5: Solve for x
    x = 52,132,911,413.73/255,383.37
  6. Step 6: Final answer
    x = 204,135.89

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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.