Finding the Fourth Proportional to 272.80, 408.93 and 118.84
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Solution
The fourth proportional to 272.80, 408.93 and 118.84 is: 178.14
Step by Step Solution
- Step 1: Write the proportion equation
272.80 : 408.93 = 118.84 : x - Step 2: Convert to fraction form
272.80/408.93 = 118.84/x - Step 3: Cross multiply
272.80x = 408.93 × 118.84 - Step 4: Simplify right side
272.80x = 48,597.24 - Step 5: Solve for x
x = 48,597.24/272.80 - Step 6: Final answer
x = 178.14
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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.