Finding the Fourth Proportional to 235,837.28, 325,461.28 and 128,413.19
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Solution
The fourth proportional to 235,837.28, 325,461.28 and 128,413.19 is: 177,213.38
Step by Step Solution
- Step 1: Write the proportion equation
235,837.28 : 325,461.28 = 128,413.19 : x - Step 2: Convert to fraction form
235,837.28/325,461.28 = 128,413.19/x - Step 3: Cross multiply
235,837.28x = 325,461.28 × 128,413.19 - Step 4: Simplify right side
235,837.28x = 41,793,522,320.97 - Step 5: Solve for x
x = 41,793,522,320.97/235,837.28 - Step 6: Final answer
x = 177,213.38
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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.