Finding the Fourth Proportional to 353.44, 486.44 and 283.26
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Solution
The fourth proportional to 353.44, 486.44 and 283.26 is: 389.85
Step by Step Solution
- Step 1: Write the proportion equation
353.44 : 486.44 = 283.26 : x - Step 2: Convert to fraction form
353.44/486.44 = 283.26/x - Step 3: Cross multiply
353.44x = 486.44 × 283.26 - Step 4: Simplify right side
353.44x = 137,788.99 - Step 5: Solve for x
x = 137,788.99/353.44 - Step 6: Final answer
x = 389.85
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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.