Finding the Fourth Proportional to 192.75, 288.99 and 165.75
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Solution
The fourth proportional to 192.75, 288.99 and 165.75 is: 248.51
Step by Step Solution
- Step 1: Write the proportion equation
192.75 : 288.99 = 165.75 : x - Step 2: Convert to fraction form
192.75/288.99 = 165.75/x - Step 3: Cross multiply
192.75x = 288.99 × 165.75 - Step 4: Simplify right side
192.75x = 47,900.09 - Step 5: Solve for x
x = 47,900.09/192.75 - Step 6: Final answer
x = 248.51
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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.