Finding the Fourth Proportional to 306,391.41, 422,790.49 and 177,304.26
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Solution
The fourth proportional to 306,391.41, 422,790.49 and 177,304.26 is: 244,662.71
Step by Step Solution
- Step 1: Write the proportion equation
306,391.41 : 422,790.49 = 177,304.26 : x - Step 2: Convert to fraction form
306,391.41/422,790.49 = 177,304.26/x - Step 3: Cross multiply
306,391.41x = 422,790.49 × 177,304.26 - Step 4: Simplify right side
306,391.41x = 74,962,553,396.05 - Step 5: Solve for x
x = 74,962,553,396.05/306,391.41 - Step 6: Final answer
x = 244,662.71
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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.