Finding the Fourth Proportional to 221.17, 331.48 and 184.99
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Solution
The fourth proportional to 221.17, 331.48 and 184.99 is: 277.25
Step by Step Solution
- Step 1: Write the proportion equation
221.17 : 331.48 = 184.99 : x - Step 2: Convert to fraction form
221.17/331.48 = 184.99/x - Step 3: Cross multiply
221.17x = 331.48 × 184.99 - Step 4: Simplify right side
221.17x = 61,320.49 - Step 5: Solve for x
x = 61,320.49/221.17 - Step 6: Final answer
x = 277.25
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.