Finding the Fourth Proportional to 416,621.62, 574,938.30 and 225,635.23
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Solution
The fourth proportional to 416,621.62, 574,938.30 and 225,635.23 is: 311,376.87
Step by Step Solution
- Step 1: Write the proportion equation
416,621.62 : 574,938.30 = 225,635.23 : x - Step 2: Convert to fraction form
416,621.62/574,938.30 = 225,635.23/x - Step 3: Cross multiply
416,621.62x = 574,938.30 × 225,635.23 - Step 4: Simplify right side
416,621.62x = 129,726,335,556.31 - Step 5: Solve for x
x = 129,726,335,556.31/416,621.62 - Step 6: Final answer
x = 311,376.87
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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.