Finding the Fourth Proportional to 173.13, 259.79 and 76.94
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Solution
The fourth proportional to 173.13, 259.79 and 76.94 is: 115.45
Step by Step Solution
- Step 1: Write the proportion equation
173.13 : 259.79 = 76.94 : x - Step 2: Convert to fraction form
173.13/259.79 = 76.94/x - Step 3: Cross multiply
173.13x = 259.79 × 76.94 - Step 4: Simplify right side
173.13x = 19,988.24 - Step 5: Solve for x
x = 19,988.24/173.13 - Step 6: Final answer
x = 115.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.