Finding the Fourth Proportional to 328,478.49, 453,222.68 and 199,413.63
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Solution
The fourth proportional to 328,478.49, 453,222.68 and 199,413.63 is: 275,143.67
Step by Step Solution
- Step 1: Write the proportion equation
328,478.49 : 453,222.68 = 199,413.63 : x - Step 2: Convert to fraction form
328,478.49/453,222.68 = 199,413.63/x - Step 3: Cross multiply
328,478.49x = 453,222.68 × 199,413.63 - Step 4: Simplify right side
328,478.49x = 90,378,778,820.06 - Step 5: Solve for x
x = 90,378,778,820.06/328,478.49 - Step 6: Final answer
x = 275,143.67
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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.