Finding the Fourth Proportional to 236,865.15, 326,859.97 and 129,413.79
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Solution
The fourth proportional to 236,865.15, 326,859.97 and 129,413.79 is: 178,583.42
Step by Step Solution
- Step 1: Write the proportion equation
236,865.15 : 326,859.97 = 129,413.79 : x - Step 2: Convert to fraction form
236,865.15/326,859.97 = 129,413.79/x - Step 3: Cross multiply
236,865.15x = 326,859.97 × 129,413.79 - Step 4: Simplify right side
236,865.15x = 42,300,187,516.99 - Step 5: Solve for x
x = 42,300,187,516.99/236,865.15 - Step 6: Final answer
x = 178,583.42
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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.