Finding the Fourth Proportional to 393.18, 588.96 and 219.84
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Solution
The fourth proportional to 393.18, 588.96 and 219.84 is: 329.31
Step by Step Solution
- Step 1: Write the proportion equation
393.18 : 588.96 = 219.84 : x - Step 2: Convert to fraction form
393.18/588.96 = 219.84/x - Step 3: Cross multiply
393.18x = 588.96 × 219.84 - Step 4: Simplify right side
393.18x = 129,476.97 - Step 5: Solve for x
x = 129,476.97/393.18 - Step 6: Final answer
x = 329.31
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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.