Finding the Fourth Proportional to 256,906.68, 354,523.88 and 142,190.02
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Solution
The fourth proportional to 256,906.68, 354,523.88 and 142,190.02 is: 196,218.17
Step by Step Solution
- Step 1: Write the proportion equation
256,906.68 : 354,523.88 = 142,190.02 : x - Step 2: Convert to fraction form
256,906.68/354,523.88 = 142,190.02/x - Step 3: Cross multiply
256,906.68x = 354,523.88 × 142,190.02 - Step 4: Simplify right side
256,906.68x = 50,409,757,587.68 - Step 5: Solve for x
x = 50,409,757,587.68/256,906.68 - Step 6: Final answer
x = 196,218.17
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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.