Finding the Fourth Proportional to 170,715.80, 256,073.70 and 117,571.70
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Solution
The fourth proportional to 170,715.80, 256,073.70 and 117,571.70 is: 176,357.55
Step by Step Solution
- Step 1: Write the proportion equation
170,715.80 : 256,073.70 = 117,571.70 : x - Step 2: Convert to fraction form
170,715.80/256,073.70 = 117,571.70/x - Step 3: Cross multiply
170,715.80x = 256,073.70 × 117,571.70 - Step 4: Simplify right side
170,715.80x = 30,107,020,234.29 - Step 5: Solve for x
x = 30,107,020,234.29/170,715.80 - Step 6: Final answer
x = 176,357.55
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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.