Finding the Fourth Proportional to 198.24, 297.36 and 170.88
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Solution
The fourth proportional to 198.24, 297.36 and 170.88 is: 256.32
Step by Step Solution
- Step 1: Write the proportion equation
198.24 : 297.36 = 170.88 : x - Step 2: Convert to fraction form
198.24/297.36 = 170.88/x - Step 3: Cross multiply
198.24x = 297.36 × 170.88 - Step 4: Simplify right side
198.24x = 50,812.88 - Step 5: Solve for x
x = 50,812.88/198.24 - Step 6: Final answer
x = 256.32
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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.