Home / 255,618.27-383,413.45-78,125.22

Finding the Fourth Proportional to 255,618.27, 383,413.45 and 78,125.22

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Solution

The fourth proportional to 255,618.27, 383,413.45 and 78,125.22 is: 117,183.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,618.27 : 383,413.45 = 78,125.22 : x
  2. Step 2: Convert to fraction form
    255,618.27/383,413.45 = 78,125.22/x
  3. Step 3: Cross multiply
    255,618.27x = 383,413.45 × 78,125.22
  4. Step 4: Simplify right side
    255,618.27x = 29,954,260,132.21
  5. Step 5: Solve for x
    x = 29,954,260,132.21/255,618.27
  6. Step 6: Final answer
    x = 117,183.56

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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.