Finding the Fourth Proportional to 393.06, 589.11 and 161.84
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Solution
The fourth proportional to 393.06, 589.11 and 161.84 is: 242.55
Step by Step Solution
- Step 1: Write the proportion equation
393.06 : 589.11 = 161.84 : x - Step 2: Convert to fraction form
393.06/589.11 = 161.84/x - Step 3: Cross multiply
393.06x = 589.11 × 161.84 - Step 4: Simplify right side
393.06x = 95,338.62 - Step 5: Solve for x
x = 95,338.62/393.06 - Step 6: Final answer
x = 242.55
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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.