Home / 258,771.22-388,193.27-90,266.97

Finding the Fourth Proportional to 258,771.22, 388,193.27 and 90,266.97

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Solution

The fourth proportional to 258,771.22, 388,193.27 and 90,266.97 is: 135,413.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,771.22 : 388,193.27 = 90,266.97 : x
  2. Step 2: Convert to fraction form
    258,771.22/388,193.27 = 90,266.97/x
  3. Step 3: Cross multiply
    258,771.22x = 388,193.27 × 90,266.97
  4. Step 4: Simplify right side
    258,771.22x = 35,041,030,257.29
  5. Step 5: Solve for x
    x = 35,041,030,257.29/258,771.22
  6. Step 6: Final answer
    x = 135,413.17

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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.