Finding the Fourth Proportional to 213,226.03, 319,993.38 and 83,413.99
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Solution
The fourth proportional to 213,226.03, 319,993.38 and 83,413.99 is: 125,181.35
Step by Step Solution
- Step 1: Write the proportion equation
213,226.03 : 319,993.38 = 83,413.99 : x - Step 2: Convert to fraction form
213,226.03/319,993.38 = 83,413.99/x - Step 3: Cross multiply
213,226.03x = 319,993.38 × 83,413.99 - Step 4: Simplify right side
213,226.03x = 26,691,923,365.76 - Step 5: Solve for x
x = 26,691,923,365.76/213,226.03 - Step 6: Final answer
x = 125,181.35
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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.