Finding the Fourth Proportional to 222,365.26, 306,864.12 and 120,390.70
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Solution
The fourth proportional to 222,365.26, 306,864.12 and 120,390.70 is: 166,139.20
Step by Step Solution
- Step 1: Write the proportion equation
222,365.26 : 306,864.12 = 120,390.70 : x - Step 2: Convert to fraction form
222,365.26/306,864.12 = 120,390.70/x - Step 3: Cross multiply
222,365.26x = 306,864.12 × 120,390.70 - Step 4: Simplify right side
222,365.26x = 36,943,586,211.68 - Step 5: Solve for x
x = 36,943,586,211.68/222,365.26 - Step 6: Final answer
x = 166,139.20
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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.