Finding the Fourth Proportional to 306,599.63, 422,745.51 and 209,850.09
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Solution
The fourth proportional to 306,599.63, 422,745.51 and 209,850.09 is: 289,345.37
Step by Step Solution
- Step 1: Write the proportion equation
306,599.63 : 422,745.51 = 209,850.09 : x - Step 2: Convert to fraction form
306,599.63/422,745.51 = 209,850.09/x - Step 3: Cross multiply
306,599.63x = 422,745.51 × 209,850.09 - Step 4: Simplify right side
306,599.63x = 88,713,183,129.57 - Step 5: Solve for x
x = 88,713,183,129.57/306,599.63 - Step 6: Final answer
x = 289,345.37
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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.