Finding the Fourth Proportional to 266.16, 398.99 and 111.99
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Solution
The fourth proportional to 266.16, 398.99 and 111.99 is: 167.88
Step by Step Solution
- Step 1: Write the proportion equation
266.16 : 398.99 = 111.99 : x - Step 2: Convert to fraction form
266.16/398.99 = 111.99/x - Step 3: Cross multiply
266.16x = 398.99 × 111.99 - Step 4: Simplify right side
266.16x = 44,682.89 - Step 5: Solve for x
x = 44,682.89/266.16 - Step 6: Final answer
x = 167.88
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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.