Finding the Fourth Proportional to 393,528.97, 543,020.11 and 223,766.74
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Solution
The fourth proportional to 393,528.97, 543,020.11 and 223,766.74 is: 308,769.75
Step by Step Solution
- Step 1: Write the proportion equation
393,528.97 : 543,020.11 = 223,766.74 : x - Step 2: Convert to fraction form
393,528.97/543,020.11 = 223,766.74/x - Step 3: Cross multiply
393,528.97x = 543,020.11 × 223,766.74 - Step 4: Simplify right side
393,528.97x = 121,509,839,769.14 - Step 5: Solve for x
x = 121,509,839,769.14/393,528.97 - Step 6: Final answer
x = 308,769.75
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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.