Finding the Fourth Proportional to 213,858.96, 295,114.84 and 121,981.88
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Solution
The fourth proportional to 213,858.96, 295,114.84 and 121,981.88 is: 168,328.99
Step by Step Solution
- Step 1: Write the proportion equation
213,858.96 : 295,114.84 = 121,981.88 : x - Step 2: Convert to fraction form
213,858.96/295,114.84 = 121,981.88/x - Step 3: Cross multiply
213,858.96x = 295,114.84 × 121,981.88 - Step 4: Simplify right side
213,858.96x = 35,998,662,999.10 - Step 5: Solve for x
x = 35,998,662,999.10/213,858.96 - Step 6: Final answer
x = 168,328.99
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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.