Finding the Fourth Proportional to 397,413.92, 548,428.50 and 216,125.37
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Solution
The fourth proportional to 397,413.92, 548,428.50 and 216,125.37 is: 298,251.54
Step by Step Solution
- Step 1: Write the proportion equation
397,413.92 : 548,428.50 = 216,125.37 : x - Step 2: Convert to fraction form
397,413.92/548,428.50 = 216,125.37/x - Step 3: Cross multiply
397,413.92x = 548,428.50 × 216,125.37 - Step 4: Simplify right side
397,413.92x = 118,529,312,481.05 - Step 5: Solve for x
x = 118,529,312,481.05/397,413.92 - Step 6: Final answer
x = 298,251.54
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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.