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Finding the Fourth Proportional to 144,917.94, 217,413.68 and 45,078.88

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Solution

The fourth proportional to 144,917.94, 217,413.68 and 45,078.88 is: 67,629.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,917.94 : 217,413.68 = 45,078.88 : x
  2. Step 2: Convert to fraction form
    144,917.94/217,413.68 = 45,078.88/x
  3. Step 3: Cross multiply
    144,917.94x = 217,413.68 × 45,078.88
  4. Step 4: Simplify right side
    144,917.94x = 9,800,765,191.08
  5. Step 5: Solve for x
    x = 9,800,765,191.08/144,917.94
  6. Step 6: Final answer
    x = 67,629.76

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1.5x scale

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.