Home / 393,413.28-589,975.33-140,625.54

Finding the Fourth Proportional to 393,413.28, 589,975.33 and 140,625.54

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Solution

The fourth proportional to 393,413.28, 589,975.33 and 140,625.54 is: 210,886.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,413.28 : 589,975.33 = 140,625.54 : x
  2. Step 2: Convert to fraction form
    393,413.28/589,975.33 = 140,625.54/x
  3. Step 3: Cross multiply
    393,413.28x = 589,975.33 × 140,625.54
  4. Step 4: Simplify right side
    393,413.28x = 82,965,599,367.93
  5. Step 5: Solve for x
    x = 82,965,599,367.93/393,413.28
  6. Step 6: Final answer
    x = 210,886.63

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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.