Finding the Fourth Proportional to 325,145.63, 487,383.21 and 135,716.23
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Solution
The fourth proportional to 325,145.63, 487,383.21 and 135,716.23 is: 203,434.41
Step by Step Solution
- Step 1: Write the proportion equation
325,145.63 : 487,383.21 = 135,716.23 : x - Step 2: Convert to fraction form
325,145.63/487,383.21 = 135,716.23/x - Step 3: Cross multiply
325,145.63x = 487,383.21 × 135,716.23 - Step 4: Simplify right side
325,145.63x = 66,145,809,694.20 - Step 5: Solve for x
x = 66,145,809,694.20/325,145.63 - Step 6: Final answer
x = 203,434.41
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.