Finding the Fourth Proportional to 315,126.26, 434,880.11 and 171,891.44
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Solution
The fourth proportional to 315,126.26, 434,880.11 and 171,891.44 is: 237,213.39
Step by Step Solution
- Step 1: Write the proportion equation
315,126.26 : 434,880.11 = 171,891.44 : x - Step 2: Convert to fraction form
315,126.26/434,880.11 = 171,891.44/x - Step 3: Cross multiply
315,126.26x = 434,880.11 × 171,891.44 - Step 4: Simplify right side
315,126.26x = 74,752,168,335.26 - Step 5: Solve for x
x = 74,752,168,335.26/315,126.26 - Step 6: Final answer
x = 237,213.39
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1.5x scale
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.