Finding the Fourth Proportional to 396,413.18, 547,051.62 and 215,125.05
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Solution
The fourth proportional to 396,413.18, 547,051.62 and 215,125.05 is: 296,873.35
Step by Step Solution
- Step 1: Write the proportion equation
396,413.18 : 547,051.62 = 215,125.05 : x - Step 2: Convert to fraction form
396,413.18/547,051.62 = 215,125.05/x - Step 3: Cross multiply
396,413.18x = 547,051.62 × 215,125.05 - Step 4: Simplify right side
396,413.18x = 117,684,507,105.08 - Step 5: Solve for x
x = 117,684,507,105.08/396,413.18 - Step 6: Final answer
x = 296,873.35
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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.