Home / 192,208.08-288,352.62-72,265.80

Finding the Fourth Proportional to 192,208.08, 288,352.62 and 72,265.80

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Solution

The fourth proportional to 192,208.08, 288,352.62 and 72,265.80 is: 108,413.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,208.08 : 288,352.62 = 72,265.80 : x
  2. Step 2: Convert to fraction form
    192,208.08/288,352.62 = 72,265.80/x
  3. Step 3: Cross multiply
    192,208.08x = 288,352.62 × 72,265.80
  4. Step 4: Simplify right side
    192,208.08x = 20,838,032,766.40
  5. Step 5: Solve for x
    x = 20,838,032,766.40/192,208.08
  6. Step 6: Final answer
    x = 108,413.93

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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.