Finding the Fourth Proportional to 206,907.91, 310,355.73 and 57,157.21
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Solution
The fourth proportional to 206,907.91, 310,355.73 and 57,157.21 is: 85,734.12
Step by Step Solution
- Step 1: Write the proportion equation
206,907.91 : 310,355.73 = 57,157.21 : x - Step 2: Convert to fraction form
206,907.91/310,355.73 = 57,157.21/x - Step 3: Cross multiply
206,907.91x = 310,355.73 × 57,157.21 - Step 4: Simplify right side
206,907.91x = 17,739,067,634.31 - Step 5: Solve for x
x = 17,739,067,634.31/206,907.91 - Step 6: Final answer
x = 85,734.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.