Finding the Fourth Proportional to 393.26, 589.95 and 119.28
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Solution
The fourth proportional to 393.26, 589.95 and 119.28 is: 178.94
Step by Step Solution
- Step 1: Write the proportion equation
393.26 : 589.95 = 119.28 : x - Step 2: Convert to fraction form
393.26/589.95 = 119.28/x - Step 3: Cross multiply
393.26x = 589.95 × 119.28 - Step 4: Simplify right side
393.26x = 70,369.24 - Step 5: Solve for x
x = 70,369.24/393.26 - Step 6: Final answer
x = 178.94
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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.