Finding the Fourth Proportional to 212,028.95, 292,616.67 and 121,413.44
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Solution
The fourth proportional to 212,028.95, 292,616.67 and 121,413.44 is: 167,560.12
Step by Step Solution
- Step 1: Write the proportion equation
212,028.95 : 292,616.67 = 121,413.44 : x - Step 2: Convert to fraction form
212,028.95/292,616.67 = 121,413.44/x - Step 3: Cross multiply
212,028.95x = 292,616.67 × 121,413.44 - Step 4: Simplify right side
212,028.95x = 35,527,595,042.96 - Step 5: Solve for x
x = 35,527,595,042.96/212,028.95 - Step 6: Final answer
x = 167,560.12
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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.