Finding the Fourth Proportional to 261,894.08, 361,413.92 and 142,662.08
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Solution
The fourth proportional to 261,894.08, 361,413.92 and 142,662.08 is: 196,873.72
Step by Step Solution
- Step 1: Write the proportion equation
261,894.08 : 361,413.92 = 142,662.08 : x - Step 2: Convert to fraction form
261,894.08/361,413.92 = 142,662.08/x - Step 3: Cross multiply
261,894.08x = 361,413.92 × 142,662.08 - Step 4: Simplify right side
261,894.08x = 51,560,061,568.15 - Step 5: Solve for x
x = 51,560,061,568.15/261,894.08 - Step 6: Final answer
x = 196,873.72
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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.