Finding the Fourth Proportional to 393.24, 589.68 and 290.19
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Solution
The fourth proportional to 393.24, 589.68 and 290.19 is: 435.15
Step by Step Solution
- Step 1: Write the proportion equation
393.24 : 589.68 = 290.19 : x - Step 2: Convert to fraction form
393.24/589.68 = 290.19/x - Step 3: Cross multiply
393.24x = 589.68 × 290.19 - Step 4: Simplify right side
393.24x = 171,119.24 - Step 5: Solve for x
x = 171,119.24/393.24 - Step 6: Final answer
x = 435.15
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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.