Finding the Fourth Proportional to 353.06, 487.33 and 205.82
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Solution
The fourth proportional to 353.06, 487.33 and 205.82 is: 284.09
Step by Step Solution
- Step 1: Write the proportion equation
353.06 : 487.33 = 205.82 : x - Step 2: Convert to fraction form
353.06/487.33 = 205.82/x - Step 3: Cross multiply
353.06x = 487.33 × 205.82 - Step 4: Simplify right side
353.06x = 100,300.92 - Step 5: Solve for x
x = 100,300.92/353.06 - Step 6: Final answer
x = 284.09
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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.