Finding the Fourth Proportional to 222,407.21, 306,943.92 and 126,928.26
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Solution
The fourth proportional to 222,407.21, 306,943.92 and 126,928.26 is: 175,173.54
Step by Step Solution
- Step 1: Write the proportion equation
222,407.21 : 306,943.92 = 126,928.26 : x - Step 2: Convert to fraction form
222,407.21/306,943.92 = 126,928.26/x - Step 3: Cross multiply
222,407.21x = 306,943.92 × 126,928.26 - Step 4: Simplify right side
222,407.21x = 38,959,857,683.18 - Step 5: Solve for x
x = 38,959,857,683.18/222,407.21 - Step 6: Final answer
x = 175,173.54
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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.