Finding the Fourth Proportional to 173.19, 259.75 and 91.99
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Solution
The fourth proportional to 173.19, 259.75 and 91.99 is: 137.97
Step by Step Solution
- Step 1: Write the proportion equation
173.19 : 259.75 = 91.99 : x - Step 2: Convert to fraction form
173.19/259.75 = 91.99/x - Step 3: Cross multiply
173.19x = 259.75 × 91.99 - Step 4: Simplify right side
173.19x = 23,894.40 - Step 5: Solve for x
x = 23,894.40/173.19 - Step 6: Final answer
x = 137.97
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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.