Finding the Fourth Proportional to 208,413.53, 312,363.82 and 118,531.68
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Solution
The fourth proportional to 208,413.53, 312,363.82 and 118,531.68 is: 177,651.65
Step by Step Solution
- Step 1: Write the proportion equation
208,413.53 : 312,363.82 = 118,531.68 : x - Step 2: Convert to fraction form
208,413.53/312,363.82 = 118,531.68/x - Step 3: Cross multiply
208,413.53x = 312,363.82 × 118,531.68 - Step 4: Simplify right side
208,413.53x = 37,025,008,355.82 - Step 5: Solve for x
x = 37,025,008,355.82/208,413.53 - Step 6: Final answer
x = 177,651.65
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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.