Finding the Fourth Proportional to 281,986.25, 389,234.09 and 252,092.70
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Solution
The fourth proportional to 281,986.25, 389,234.09 and 252,092.70 is: 347,971.12
Step by Step Solution
- Step 1: Write the proportion equation
281,986.25 : 389,234.09 = 252,092.70 : x - Step 2: Convert to fraction form
281,986.25/389,234.09 = 252,092.70/x - Step 3: Cross multiply
281,986.25x = 389,234.09 × 252,092.70 - Step 4: Simplify right side
281,986.25x = 98,123,071,419.68 - Step 5: Solve for x
x = 98,123,071,419.68/281,986.25 - Step 6: Final answer
x = 347,971.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.