Finding the Fourth Proportional to 272.99, 376.49 and 223.79
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Solution
The fourth proportional to 272.99, 376.49 and 223.79 is: 308.63
Step by Step Solution
- Step 1: Write the proportion equation
272.99 : 376.49 = 223.79 : x - Step 2: Convert to fraction form
272.99/376.49 = 223.79/x - Step 3: Cross multiply
272.99x = 376.49 × 223.79 - Step 4: Simplify right side
272.99x = 84,251.70 - Step 5: Solve for x
x = 84,251.70/272.99 - Step 6: Final answer
x = 308.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.