Finding the Fourth Proportional to 428.36, 591.26 and 270.99
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Solution
The fourth proportional to 428.36, 591.26 and 270.99 is: 374.05
Step by Step Solution
- Step 1: Write the proportion equation
428.36 : 591.26 = 270.99 : x - Step 2: Convert to fraction form
428.36/591.26 = 270.99/x - Step 3: Cross multiply
428.36x = 591.26 × 270.99 - Step 4: Simplify right side
428.36x = 160,224.19 - Step 5: Solve for x
x = 160,224.19/428.36 - Step 6: Final answer
x = 374.05
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.