Finding the Fourth Proportional to 203,688.15, 305,413.83 and 136,297.19
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Solution
The fourth proportional to 203,688.15, 305,413.83 and 136,297.19 is: 204,366.55
Step by Step Solution
- Step 1: Write the proportion equation
203,688.15 : 305,413.83 = 136,297.19 : x - Step 2: Convert to fraction form
203,688.15/305,413.83 = 136,297.19/x - Step 3: Cross multiply
203,688.15x = 305,413.83 × 136,297.19 - Step 4: Simplify right side
203,688.15x = 41,627,045,289.07 - Step 5: Solve for x
x = 41,627,045,289.07/203,688.15 - Step 6: Final answer
x = 204,366.55
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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.