Finding the Fourth Proportional to 222,482.68, 307,021.98 and 121,879.96
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Solution
The fourth proportional to 222,482.68, 307,021.98 and 121,879.96 is: 168,192.09
Step by Step Solution
- Step 1: Write the proportion equation
222,482.68 : 307,021.98 = 121,879.96 : x - Step 2: Convert to fraction form
222,482.68/307,021.98 = 121,879.96/x - Step 3: Cross multiply
222,482.68x = 307,021.98 × 121,879.96 - Step 4: Simplify right side
222,482.68x = 37,419,826,641.52 - Step 5: Solve for x
x = 37,419,826,641.52/222,482.68 - Step 6: Final answer
x = 168,192.09
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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.