Finding the Fourth Proportional to 226.91, 313.01 and 143.99
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Solution
The fourth proportional to 226.91, 313.01 and 143.99 is: 198.62
Step by Step Solution
- Step 1: Write the proportion equation
226.91 : 313.01 = 143.99 : x - Step 2: Convert to fraction form
226.91/313.01 = 143.99/x - Step 3: Cross multiply
226.91x = 313.01 × 143.99 - Step 4: Simplify right side
226.91x = 45,068.74 - Step 5: Solve for x
x = 45,068.74/226.91 - Step 6: Final answer
x = 198.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.