Finding the Fourth Proportional to 306.51, 459.11 and 190.99
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Solution
The fourth proportional to 306.51, 459.11 and 190.99 is: 286.08
Step by Step Solution
- Step 1: Write the proportion equation
306.51 : 459.11 = 190.99 : x - Step 2: Convert to fraction form
306.51/459.11 = 190.99/x - Step 3: Cross multiply
306.51x = 459.11 × 190.99 - Step 4: Simplify right side
306.51x = 87,685.42 - Step 5: Solve for x
x = 87,685.42/306.51 - Step 6: Final answer
x = 286.08
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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.