Finding the Fourth Proportional to 178,821.70, 268,232.55 and 80,517.70
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Solution
The fourth proportional to 178,821.70, 268,232.55 and 80,517.70 is: 120,776.55
Step by Step Solution
- Step 1: Write the proportion equation
178,821.70 : 268,232.55 = 80,517.70 : x - Step 2: Convert to fraction form
178,821.70/268,232.55 = 80,517.70/x - Step 3: Cross multiply
178,821.70x = 268,232.55 × 80,517.70 - Step 4: Simplify right side
178,821.70x = 21,597,467,991.14 - Step 5: Solve for x
x = 21,597,467,991.14/178,821.70 - Step 6: Final answer
x = 120,776.55
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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.