Finding the Fourth Proportional to 394.99, 591.96 and 211.99
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Solution
The fourth proportional to 394.99, 591.96 and 211.99 is: 317.70
Step by Step Solution
- Step 1: Write the proportion equation
394.99 : 591.96 = 211.99 : x - Step 2: Convert to fraction form
394.99/591.96 = 211.99/x - Step 3: Cross multiply
394.99x = 591.96 × 211.99 - Step 4: Simplify right side
394.99x = 125,489.60 - Step 5: Solve for x
x = 125,489.60/394.99 - Step 6: Final answer
x = 317.70
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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.