Finding the Fourth Proportional to 221,687.01, 305,928.42 and 126,193.68
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Solution
The fourth proportional to 221,687.01, 305,928.42 and 126,193.68 is: 174,147.48
Step by Step Solution
- Step 1: Write the proportion equation
221,687.01 : 305,928.42 = 126,193.68 : x - Step 2: Convert to fraction form
221,687.01/305,928.42 = 126,193.68/x - Step 3: Cross multiply
221,687.01x = 305,928.42 × 126,193.68 - Step 4: Simplify right side
221,687.01x = 38,606,233,136.39 - Step 5: Solve for x
x = 38,606,233,136.39/221,687.01 - Step 6: Final answer
x = 174,147.48
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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.