Finding the Fourth Proportional to 222,356.19, 306,849.33 and 120,378.96
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Solution
The fourth proportional to 222,356.19, 306,849.33 and 120,378.96 is: 166,121.77
Step by Step Solution
- Step 1: Write the proportion equation
222,356.19 : 306,849.33 = 120,378.96 : x - Step 2: Convert to fraction form
222,356.19/306,849.33 = 120,378.96/x - Step 3: Cross multiply
222,356.19x = 306,849.33 × 120,378.96 - Step 4: Simplify right side
222,356.19x = 36,938,203,222.10 - Step 5: Solve for x
x = 36,938,203,222.10/222,356.19 - Step 6: Final answer
x = 166,121.77
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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.