Finding the Fourth Proportional to 441.99, 609.26 and 310.77
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Solution
The fourth proportional to 441.99, 609.26 and 310.77 is: 428.38
Step by Step Solution
- Step 1: Write the proportion equation
441.99 : 609.26 = 310.77 : x - Step 2: Convert to fraction form
441.99/609.26 = 310.77/x - Step 3: Cross multiply
441.99x = 609.26 × 310.77 - Step 4: Simplify right side
441.99x = 189,338.18 - Step 5: Solve for x
x = 189,338.18/441.99 - Step 6: Final answer
x = 428.38
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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.