Finding the Fourth Proportional to 170,701.40, 256,052.10 and 107,715.80
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Solution
The fourth proportional to 170,701.40, 256,052.10 and 107,715.80 is: 161,573.70
Step by Step Solution
- Step 1: Write the proportion equation
170,701.40 : 256,052.10 = 107,715.80 : x - Step 2: Convert to fraction form
170,701.40/256,052.10 = 107,715.80/x - Step 3: Cross multiply
170,701.40x = 256,052.10 × 107,715.80 - Step 4: Simplify right side
170,701.40x = 27,580,856,793.18 - Step 5: Solve for x
x = 27,580,856,793.18/170,701.40 - Step 6: Final answer
x = 161,573.70
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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.