Finding the Fourth Proportional to 281,873.99, 422,765.97 and 82,147.67
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Solution
The fourth proportional to 281,873.99, 422,765.97 and 82,147.67 is: 123,208.39
Step by Step Solution
- Step 1: Write the proportion equation
281,873.99 : 422,765.97 = 82,147.67 : x - Step 2: Convert to fraction form
281,873.99/422,765.97 = 82,147.67/x - Step 3: Cross multiply
281,873.99x = 422,765.97 × 82,147.67 - Step 4: Simplify right side
281,873.99x = 34,729,239,390.79 - Step 5: Solve for x
x = 34,729,239,390.79/281,873.99 - Step 6: Final answer
x = 123,208.39
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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.