Finding the Fourth Proportional to 396,703.06, 547,448.49 and 215,413.51
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Solution
The fourth proportional to 396,703.06, 547,448.49 and 215,413.51 is: 297,269.70
Step by Step Solution
- Step 1: Write the proportion equation
396,703.06 : 547,448.49 = 215,413.51 : x - Step 2: Convert to fraction form
396,703.06/547,448.49 = 215,413.51/x - Step 3: Cross multiply
396,703.06x = 547,448.49 × 215,413.51 - Step 4: Simplify right side
396,703.06x = 117,927,800,775.10 - Step 5: Solve for x
x = 117,927,800,775.10/396,703.06 - Step 6: Final answer
x = 297,269.70
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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.