Finding the Fourth Proportional to 143.19, 214.97 and 110.79
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Solution
The fourth proportional to 143.19, 214.97 and 110.79 is: 166.32
Step by Step Solution
- Step 1: Write the proportion equation
143.19 : 214.97 = 110.79 : x - Step 2: Convert to fraction form
143.19/214.97 = 110.79/x - Step 3: Cross multiply
143.19x = 214.97 × 110.79 - Step 4: Simplify right side
143.19x = 23,815.97 - Step 5: Solve for x
x = 23,815.97/143.19 - Step 6: Final answer
x = 166.32
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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.