Finding the Fourth Proportional to 222,147.36, 306,555.84 and 121,543.20
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Solution
The fourth proportional to 222,147.36, 306,555.84 and 121,543.20 is: 167,725.50
Step by Step Solution
- Step 1: Write the proportion equation
222,147.36 : 306,555.84 = 121,543.20 : x - Step 2: Convert to fraction form
222,147.36/306,555.84 = 121,543.20/x - Step 3: Cross multiply
222,147.36x = 306,555.84 × 121,543.20 - Step 4: Simplify right side
222,147.36x = 37,259,777,772.29 - Step 5: Solve for x
x = 37,259,777,772.29/222,147.36 - Step 6: Final answer
x = 167,725.50
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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.