Finding the Fourth Proportional to 266.19, 398.99 and 112.07
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Solution
The fourth proportional to 266.19, 398.99 and 112.07 is: 167.98
Step by Step Solution
- Step 1: Write the proportion equation
266.19 : 398.99 = 112.07 : x - Step 2: Convert to fraction form
266.19/398.99 = 112.07/x - Step 3: Cross multiply
266.19x = 398.99 × 112.07 - Step 4: Simplify right side
266.19x = 44,716.09 - Step 5: Solve for x
x = 44,716.09/266.19 - Step 6: Final answer
x = 167.98
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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.