Finding the Fourth Proportional to 343.70, 474.08 and 238.62
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Solution
The fourth proportional to 343.70, 474.08 and 238.62 is: 329.14
Step by Step Solution
- Step 1: Write the proportion equation
343.70 : 474.08 = 238.62 : x - Step 2: Convert to fraction form
343.70/474.08 = 238.62/x - Step 3: Cross multiply
343.70x = 474.08 × 238.62 - Step 4: Simplify right side
343.70x = 113,124.97 - Step 5: Solve for x
x = 113,124.97/343.70 - Step 6: Final answer
x = 329.14
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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.