Finding the Fourth Proportional to 281,242.14, 422,154.81 and 188,396.70
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Solution
The fourth proportional to 281,242.14, 422,154.81 and 188,396.70 is: 282,790.39
Step by Step Solution
- Step 1: Write the proportion equation
281,242.14 : 422,154.81 = 188,396.70 : x - Step 2: Convert to fraction form
281,242.14/422,154.81 = 188,396.70/x - Step 3: Cross multiply
281,242.14x = 422,154.81 × 188,396.70 - Step 4: Simplify right side
281,242.14x = 79,532,573,093.13 - Step 5: Solve for x
x = 79,532,573,093.13/281,242.14 - Step 6: Final answer
x = 282,790.39
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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.