Finding the Fourth Proportional to 256,137.36, 353,460.96 and 141,414.09
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Solution
The fourth proportional to 256,137.36, 353,460.96 and 141,414.09 is: 195,146.70
Step by Step Solution
- Step 1: Write the proportion equation
256,137.36 : 353,460.96 = 141,414.09 : x - Step 2: Convert to fraction form
256,137.36/353,460.96 = 141,414.09/x - Step 3: Cross multiply
256,137.36x = 353,460.96 × 141,414.09 - Step 4: Simplify right side
256,137.36x = 49,984,360,008.93 - Step 5: Solve for x
x = 49,984,360,008.93/256,137.36 - Step 6: Final answer
x = 195,146.70
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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.