Finding the Fourth Proportional to 222,356.24, 306,849.21 and 120,379.82
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Solution
The fourth proportional to 222,356.24, 306,849.21 and 120,379.82 is: 166,122.85
Step by Step Solution
- Step 1: Write the proportion equation
222,356.24 : 306,849.21 = 120,379.82 : x - Step 2: Convert to fraction form
222,356.24/306,849.21 = 120,379.82/x - Step 3: Cross multiply
222,356.24x = 306,849.21 × 120,379.82 - Step 4: Simplify right side
222,356.24x = 36,938,453,084.44 - Step 5: Solve for x
x = 36,938,453,084.44/222,356.24 - Step 6: Final answer
x = 166,122.85
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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.