Finding the Fourth Proportional to 173.44, 239.08 and 143.58
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Solution
The fourth proportional to 173.44, 239.08 and 143.58 is: 197.92
Step by Step Solution
- Step 1: Write the proportion equation
173.44 : 239.08 = 143.58 : x - Step 2: Convert to fraction form
173.44/239.08 = 143.58/x - Step 3: Cross multiply
173.44x = 239.08 × 143.58 - Step 4: Simplify right side
173.44x = 34,327.11 - Step 5: Solve for x
x = 34,327.11/173.44 - Step 6: Final answer
x = 197.92
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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.