Finding the Fourth Proportional to 398.23, 596.99 and 154.70
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Solution
The fourth proportional to 398.23, 596.99 and 154.70 is: 231.90
Step by Step Solution
- Step 1: Write the proportion equation
398.23 : 596.99 = 154.70 : x - Step 2: Convert to fraction form
398.23/596.99 = 154.70/x - Step 3: Cross multiply
398.23x = 596.99 × 154.70 - Step 4: Simplify right side
398.23x = 92,350.59 - Step 5: Solve for x
x = 92,350.59/398.23 - Step 6: Final answer
x = 231.90
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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.