Finding the Fourth Proportional to 445.12, 668.21 and 296.99
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Solution
The fourth proportional to 445.12, 668.21 and 296.99 is: 445.84
Step by Step Solution
- Step 1: Write the proportion equation
445.12 : 668.21 = 296.99 : x - Step 2: Convert to fraction form
445.12/668.21 = 296.99/x - Step 3: Cross multiply
445.12x = 668.21 × 296.99 - Step 4: Simplify right side
445.12x = 198,451.69 - Step 5: Solve for x
x = 198,451.69/445.12 - Step 6: Final answer
x = 445.84
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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.