Finding the Fourth Proportional to 442.82, 664.36 and 154.23
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Solution
The fourth proportional to 442.82, 664.36 and 154.23 is: 231.39
Step by Step Solution
- Step 1: Write the proportion equation
442.82 : 664.36 = 154.23 : x - Step 2: Convert to fraction form
442.82/664.36 = 154.23/x - Step 3: Cross multiply
442.82x = 664.36 × 154.23 - Step 4: Simplify right side
442.82x = 102,464.24 - Step 5: Solve for x
x = 102,464.24/442.82 - Step 6: Final answer
x = 231.39
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.