Finding the Fourth Proportional to 274,193.70, 378,380.18 and 151,690.60
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Solution
The fourth proportional to 274,193.70, 378,380.18 and 151,690.60 is: 209,329.09
Step by Step Solution
- Step 1: Write the proportion equation
274,193.70 : 378,380.18 = 151,690.60 : x - Step 2: Convert to fraction form
274,193.70/378,380.18 = 151,690.60/x - Step 3: Cross multiply
274,193.70x = 378,380.18 × 151,690.60 - Step 4: Simplify right side
274,193.70x = 57,396,716,532.31 - Step 5: Solve for x
x = 57,396,716,532.31/274,193.70 - Step 6: Final answer
x = 209,329.09
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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.