Finding the Fourth Proportional to 393.99, 591.09 and 369.29
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Solution
The fourth proportional to 393.99, 591.09 and 369.29 is: 554.03
Step by Step Solution
- Step 1: Write the proportion equation
393.99 : 591.09 = 369.29 : x - Step 2: Convert to fraction form
393.99/591.09 = 369.29/x - Step 3: Cross multiply
393.99x = 591.09 × 369.29 - Step 4: Simplify right side
393.99x = 218,283.63 - Step 5: Solve for x
x = 218,283.63/393.99 - Step 6: Final answer
x = 554.03
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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.