Finding the Fourth Proportional to 192.80, 288.99 and 154.53
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Solution
The fourth proportional to 192.80, 288.99 and 154.53 is: 231.62
Step by Step Solution
- Step 1: Write the proportion equation
192.80 : 288.99 = 154.53 : x - Step 2: Convert to fraction form
192.80/288.99 = 154.53/x - Step 3: Cross multiply
192.80x = 288.99 × 154.53 - Step 4: Simplify right side
192.80x = 44,657.62 - Step 5: Solve for x
x = 44,657.62/192.80 - Step 6: Final answer
x = 231.62
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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.