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Finding the Fourth Proportional to 218,413.67, 327,620.13 and 68,667.05

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Solution

The fourth proportional to 218,413.67, 327,620.13 and 68,667.05 is: 103,000.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,413.67 : 327,620.13 = 68,667.05 : x
  2. Step 2: Convert to fraction form
    218,413.67/327,620.13 = 68,667.05/x
  3. Step 3: Cross multiply
    218,413.67x = 327,620.13 × 68,667.05
  4. Step 4: Simplify right side
    218,413.67x = 22,496,707,847.72
  5. Step 5: Solve for x
    x = 22,496,707,847.72/218,413.67
  6. Step 6: Final answer
    x = 103,000.46

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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.