Finding the Fourth Proportional to 248,413.40, 342,810.40 and 135,236.12
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Solution
The fourth proportional to 248,413.40, 342,810.40 and 135,236.12 is: 186,625.80
Step by Step Solution
- Step 1: Write the proportion equation
248,413.40 : 342,810.40 = 135,236.12 : x - Step 2: Convert to fraction form
248,413.40/342,810.40 = 135,236.12/x - Step 3: Cross multiply
248,413.40x = 342,810.40 × 135,236.12 - Step 4: Simplify right side
248,413.40x = 46,360,348,391.65 - Step 5: Solve for x
x = 46,360,348,391.65/248,413.40 - Step 6: Final answer
x = 186,625.80
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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.