Finding the Fourth Proportional to 306,470.79, 422,928.39 and 170,517.75
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Solution
The fourth proportional to 306,470.79, 422,928.39 and 170,517.75 is: 235,313.77
Step by Step Solution
- Step 1: Write the proportion equation
306,470.79 : 422,928.39 = 170,517.75 : x - Step 2: Convert to fraction form
306,470.79/422,928.39 = 170,517.75/x - Step 3: Cross multiply
306,470.79x = 422,928.39 × 170,517.75 - Step 4: Simplify right side
306,470.79x = 72,116,797,473.92 - Step 5: Solve for x
x = 72,116,797,473.92/306,470.79 - Step 6: Final answer
x = 235,313.77
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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.