Finding the Fourth Proportional to 281,287.99, 421,878.23 and 84,295.99
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Solution
The fourth proportional to 281,287.99, 421,878.23 and 84,295.99 is: 126,427.87
Step by Step Solution
- Step 1: Write the proportion equation
281,287.99 : 421,878.23 = 84,295.99 : x - Step 2: Convert to fraction form
281,287.99/421,878.23 = 84,295.99/x - Step 3: Cross multiply
281,287.99x = 421,878.23 × 84,295.99 - Step 4: Simplify right side
281,287.99x = 35,562,642,635.82 - Step 5: Solve for x
x = 35,562,642,635.82/281,287.99 - Step 6: Final answer
x = 126,427.87
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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.