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Finding the Fourth Proportional to 248,067.60, 372,101.40 and 90,275.55

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Solution

The fourth proportional to 248,067.60, 372,101.40 and 90,275.55 is: 135,413.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,067.60 : 372,101.40 = 90,275.55 : x
  2. Step 2: Convert to fraction form
    248,067.60/372,101.40 = 90,275.55/x
  3. Step 3: Cross multiply
    248,067.60x = 372,101.40 × 90,275.55
  4. Step 4: Simplify right side
    248,067.60x = 33,591,658,540.77
  5. Step 5: Solve for x
    x = 33,591,658,540.77/248,067.60
  6. Step 6: Final answer
    x = 135,413.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.