Finding the Fourth Proportional to 170,707.75, 256,112.88 and 80,818.99
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Solution
The fourth proportional to 170,707.75, 256,112.88 and 80,818.99 is: 121,252.75
Step by Step Solution
- Step 1: Write the proportion equation
170,707.75 : 256,112.88 = 80,818.99 : x - Step 2: Convert to fraction form
170,707.75/256,112.88 = 80,818.99/x - Step 3: Cross multiply
170,707.75x = 256,112.88 × 80,818.99 - Step 4: Simplify right side
170,707.75x = 20,698,784,287.59 - Step 5: Solve for x
x = 20,698,784,287.59/170,707.75 - Step 6: Final answer
x = 121,252.75
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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.