Finding the Fourth Proportional to 378,537.80, 522,413.57 and 217,423.94
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Solution
The fourth proportional to 378,537.80, 522,413.57 and 217,423.94 is: 300,063.07
Step by Step Solution
- Step 1: Write the proportion equation
378,537.80 : 522,413.57 = 217,423.94 : x - Step 2: Convert to fraction form
378,537.80/522,413.57 = 217,423.94/x - Step 3: Cross multiply
378,537.80x = 522,413.57 × 217,423.94 - Step 4: Simplify right side
378,537.80x = 113,585,212,999.68 - Step 5: Solve for x
x = 113,585,212,999.68/378,537.80 - Step 6: Final answer
x = 300,063.07
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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.