Finding the Fourth Proportional to 396,702.80, 547,447.84 and 215,413.14
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Solution
The fourth proportional to 396,702.80, 547,447.84 and 215,413.14 is: 297,269.03
Step by Step Solution
- Step 1: Write the proportion equation
396,702.80 : 547,447.84 = 215,413.14 : x - Step 2: Convert to fraction form
396,702.80/547,447.84 = 215,413.14/x - Step 3: Cross multiply
396,702.80x = 547,447.84 × 215,413.14 - Step 4: Simplify right side
396,702.80x = 117,927,458,200.62 - Step 5: Solve for x
x = 117,927,458,200.62/396,702.80 - Step 6: Final answer
x = 297,269.03
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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.