Finding the Fourth Proportional to 213,138.92, 294,110.73 and 117,639.42
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Solution
The fourth proportional to 213,138.92, 294,110.73 and 117,639.42 is: 162,330.82
Step by Step Solution
- Step 1: Write the proportion equation
213,138.92 : 294,110.73 = 117,639.42 : x - Step 2: Convert to fraction form
213,138.92/294,110.73 = 117,639.42/x - Step 3: Cross multiply
213,138.92x = 294,110.73 × 117,639.42 - Step 4: Simplify right side
213,138.92x = 34,599,015,692.98 - Step 5: Solve for x
x = 34,599,015,692.98/213,138.92 - Step 6: Final answer
x = 162,330.82
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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.