Finding the Fourth Proportional to 146.19, 219.08 and 126.98
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Solution
The fourth proportional to 146.19, 219.08 and 126.98 is: 190.28
Step by Step Solution
- Step 1: Write the proportion equation
146.19 : 219.08 = 126.98 : x - Step 2: Convert to fraction form
146.19/219.08 = 126.98/x - Step 3: Cross multiply
146.19x = 219.08 × 126.98 - Step 4: Simplify right side
146.19x = 27,817.68 - Step 5: Solve for x
x = 27,817.68/146.19 - Step 6: Final answer
x = 190.28
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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.