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Finding the Fourth Proportional to 218,259.48, 326,780.93 and 111,413.59

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Solution

The fourth proportional to 218,259.48, 326,780.93 and 111,413.59 is: 166,809.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,259.48 : 326,780.93 = 111,413.59 : x
  2. Step 2: Convert to fraction form
    218,259.48/326,780.93 = 111,413.59/x
  3. Step 3: Cross multiply
    218,259.48x = 326,780.93 × 111,413.59
  4. Step 4: Simplify right side
    218,259.48x = 36,407,837,854.56
  5. Step 5: Solve for x
    x = 36,407,837,854.56/218,259.48
  6. Step 6: Final answer
    x = 166,809.88

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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.