Finding the Fourth Proportional to 394.97, 592.39 and 120.99
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Solution
The fourth proportional to 394.97, 592.39 and 120.99 is: 181.47
Step by Step Solution
- Step 1: Write the proportion equation
394.97 : 592.39 = 120.99 : x - Step 2: Convert to fraction form
394.97/592.39 = 120.99/x - Step 3: Cross multiply
394.97x = 592.39 × 120.99 - Step 4: Simplify right side
394.97x = 71,673.97 - Step 5: Solve for x
x = 71,673.97/394.97 - Step 6: Final answer
x = 181.47
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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.