Finding the Fourth Proportional to 228.91, 343.36 and 84.63
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Solution
The fourth proportional to 228.91, 343.36 and 84.63 is: 126.94
Step by Step Solution
- Step 1: Write the proportion equation
228.91 : 343.36 = 84.63 : x - Step 2: Convert to fraction form
228.91/343.36 = 84.63/x - Step 3: Cross multiply
228.91x = 343.36 × 84.63 - Step 4: Simplify right side
228.91x = 29,056.84 - Step 5: Solve for x
x = 29,056.84/228.91 - Step 6: Final answer
x = 126.94
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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.