Finding the Fourth Proportional to 393,940.26, 543,634.20 and 224,183.70
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Solution
The fourth proportional to 393,940.26, 543,634.20 and 224,183.70 is: 309,371.59
Step by Step Solution
- Step 1: Write the proportion equation
393,940.26 : 543,634.20 = 224,183.70 : x - Step 2: Convert to fraction form
393,940.26/543,634.20 = 224,183.70/x - Step 3: Cross multiply
393,940.26x = 543,634.20 × 224,183.70 - Step 4: Simplify right side
393,940.26x = 121,873,926,402.54 - Step 5: Solve for x
x = 121,873,926,402.54/393,940.26 - Step 6: Final answer
x = 309,371.59
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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.