Finding the Fourth Proportional to 235,837.22, 325,461.20 and 128,413.14
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Solution
The fourth proportional to 235,837.22, 325,461.20 and 128,413.14 is: 177,213.31
Step by Step Solution
- Step 1: Write the proportion equation
235,837.22 : 325,461.20 = 128,413.14 : x - Step 2: Convert to fraction form
235,837.22/325,461.20 = 128,413.14/x - Step 3: Cross multiply
235,837.22x = 325,461.20 × 128,413.14 - Step 4: Simplify right side
235,837.22x = 41,793,494,640.17 - Step 5: Solve for x
x = 41,793,494,640.17/235,837.22 - Step 6: Final answer
x = 177,213.31
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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.