Finding the Fourth Proportional to 306,331.21, 422,674.62 and 178,982.20
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Solution
The fourth proportional to 306,331.21, 422,674.62 and 178,982.20 is: 246,958.95
Step by Step Solution
- Step 1: Write the proportion equation
306,331.21 : 422,674.62 = 178,982.20 : x - Step 2: Convert to fraction form
306,331.21/422,674.62 = 178,982.20/x - Step 3: Cross multiply
306,331.21x = 422,674.62 × 178,982.20 - Step 4: Simplify right side
306,331.21x = 75,651,233,371.76 - Step 5: Solve for x
x = 75,651,233,371.76/306,331.21 - Step 6: Final answer
x = 246,958.95
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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.