Finding the Fourth Proportional to 222,369.26, 306,869.64 and 120,394.70
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Solution
The fourth proportional to 222,369.26, 306,869.64 and 120,394.70 is: 166,144.72
Step by Step Solution
- Step 1: Write the proportion equation
222,369.26 : 306,869.64 = 120,394.70 : x - Step 2: Convert to fraction form
222,369.26/306,869.64 = 120,394.70/x - Step 3: Cross multiply
222,369.26x = 306,869.64 × 120,394.70 - Step 4: Simplify right side
222,369.26x = 36,945,478,246.91 - Step 5: Solve for x
x = 36,945,478,246.91/222,369.26 - Step 6: Final answer
x = 166,144.72
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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.