Finding the Fourth Proportional to 213,211.75, 294,232.14 and 122,585.44
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Solution
The fourth proportional to 213,211.75, 294,232.14 and 122,585.44 is: 169,167.86
Step by Step Solution
- Step 1: Write the proportion equation
213,211.75 : 294,232.14 = 122,585.44 : x - Step 2: Convert to fraction form
213,211.75/294,232.14 = 122,585.44/x - Step 3: Cross multiply
213,211.75x = 294,232.14 × 122,585.44 - Step 4: Simplify right side
213,211.75x = 36,068,576,344.04 - Step 5: Solve for x
x = 36,068,576,344.04/213,211.75 - Step 6: Final answer
x = 169,167.86
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1.5x scale
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.