Finding the Fourth Proportional to 271,759.98, 405,809.93 and 221,938.91
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Solution
The fourth proportional to 271,759.98, 405,809.93 and 221,938.91 is: 331,413.82
Step by Step Solution
- Step 1: Write the proportion equation
271,759.98 : 405,809.93 = 221,938.91 : x - Step 2: Convert to fraction form
271,759.98/405,809.93 = 221,938.91/x - Step 3: Cross multiply
271,759.98x = 405,809.93 × 221,938.91 - Step 4: Simplify right side
271,759.98x = 90,065,013,531.38 - Step 5: Solve for x
x = 90,065,013,531.38/271,759.98 - Step 6: Final answer
x = 331,413.82
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.