Finding the Fourth Proportional to 306,121.68, 422,653.95 and 273,755.70
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Solution
The fourth proportional to 306,121.68, 422,653.95 and 273,755.70 is: 377,967.11
Step by Step Solution
- Step 1: Write the proportion equation
306,121.68 : 422,653.95 = 273,755.70 : x - Step 2: Convert to fraction form
306,121.68/422,653.95 = 273,755.70/x - Step 3: Cross multiply
306,121.68x = 422,653.95 × 273,755.70 - Step 4: Simplify right side
306,121.68x = 115,703,927,940.02 - Step 5: Solve for x
x = 115,703,927,940.02/306,121.68 - Step 6: Final answer
x = 377,967.11
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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.