Finding the Fourth Proportional to 272.33, 408.34 and 98.99
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Solution
The fourth proportional to 272.33, 408.34 and 98.99 is: 148.43
Step by Step Solution
- Step 1: Write the proportion equation
272.33 : 408.34 = 98.99 : x - Step 2: Convert to fraction form
272.33/408.34 = 98.99/x - Step 3: Cross multiply
272.33x = 408.34 × 98.99 - Step 4: Simplify right side
272.33x = 40,421.19 - Step 5: Solve for x
x = 40,421.19/272.33 - Step 6: Final answer
x = 148.43
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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.