Finding the Fourth Proportional to 188.99, 283.11 and 145.62
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Solution
The fourth proportional to 188.99, 283.11 and 145.62 is: 218.14
Step by Step Solution
- Step 1: Write the proportion equation
188.99 : 283.11 = 145.62 : x - Step 2: Convert to fraction form
188.99/283.11 = 145.62/x - Step 3: Cross multiply
188.99x = 283.11 × 145.62 - Step 4: Simplify right side
188.99x = 41,226.48 - Step 5: Solve for x
x = 41,226.48/188.99 - Step 6: Final answer
x = 218.14
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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.