Finding the Fourth Proportional to 275,435.11, 380,107.99 and 154,583.88
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Solution
The fourth proportional to 275,435.11, 380,107.99 and 154,583.88 is: 213,329.99
Step by Step Solution
- Step 1: Write the proportion equation
275,435.11 : 380,107.99 = 154,583.88 : x - Step 2: Convert to fraction form
275,435.11/380,107.99 = 154,583.88/x - Step 3: Cross multiply
275,435.11x = 380,107.99 × 154,583.88 - Step 4: Simplify right side
275,435.11x = 58,758,568,090.55 - Step 5: Solve for x
x = 58,758,568,090.55/275,435.11 - Step 6: Final answer
x = 213,329.99
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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.