Finding the Fourth Proportional to 442.99, 664.70 and 183.18
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Solution
The fourth proportional to 442.99, 664.70 and 183.18 is: 274.86
Step by Step Solution
- Step 1: Write the proportion equation
442.99 : 664.70 = 183.18 : x - Step 2: Convert to fraction form
442.99/664.70 = 183.18/x - Step 3: Cross multiply
442.99x = 664.70 × 183.18 - Step 4: Simplify right side
442.99x = 121,759.75 - Step 5: Solve for x
x = 121,759.75/442.99 - Step 6: Final answer
x = 274.86
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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.