Finding the Fourth Proportional to 173.19, 239.19 and 136.62
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Solution
The fourth proportional to 173.19, 239.19 and 136.62 is: 188.68
Step by Step Solution
- Step 1: Write the proportion equation
173.19 : 239.19 = 136.62 : x - Step 2: Convert to fraction form
173.19/239.19 = 136.62/x - Step 3: Cross multiply
173.19x = 239.19 × 136.62 - Step 4: Simplify right side
173.19x = 32,677.63 - Step 5: Solve for x
x = 32,677.63/173.19 - Step 6: Final answer
x = 188.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.