Finding the Fourth Proportional to 235,843.22, 325,464.02 and 128,413.68
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Solution
The fourth proportional to 235,843.22, 325,464.02 and 128,413.68 is: 177,211.08
Step by Step Solution
- Step 1: Write the proportion equation
235,843.22 : 325,464.02 = 128,413.68 : x - Step 2: Convert to fraction form
235,843.22/325,464.02 = 128,413.68/x - Step 3: Cross multiply
235,843.22x = 325,464.02 × 128,413.68 - Step 4: Simplify right side
235,843.22x = 41,794,032,515.79 - Step 5: Solve for x
x = 41,794,032,515.79/235,843.22 - Step 6: Final answer
x = 177,211.08
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.