Finding the Fourth Proportional to 305,377.04, 421,421.39 and 169,413.68
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Solution
The fourth proportional to 305,377.04, 421,421.39 and 169,413.68 is: 233,791.47
Step by Step Solution
- Step 1: Write the proportion equation
305,377.04 : 421,421.39 = 169,413.68 : x - Step 2: Convert to fraction form
305,377.04/421,421.39 = 169,413.68/x - Step 3: Cross multiply
305,377.04x = 421,421.39 × 169,413.68 - Step 4: Simplify right side
305,377.04x = 71,394,545,556.44 - Step 5: Solve for x
x = 71,394,545,556.44/305,377.04 - Step 6: Final answer
x = 233,791.47
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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.