Finding the Fourth Proportional to 403.91, 606.23 and 218.96
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Solution
The fourth proportional to 403.91, 606.23 and 218.96 is: 328.63
Step by Step Solution
- Step 1: Write the proportion equation
403.91 : 606.23 = 218.96 : x - Step 2: Convert to fraction form
403.91/606.23 = 218.96/x - Step 3: Cross multiply
403.91x = 606.23 × 218.96 - Step 4: Simplify right side
403.91x = 132,735.99 - Step 5: Solve for x
x = 132,735.99/403.91 - Step 6: Final answer
x = 328.63
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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.