Finding the Fourth Proportional to 212.27, 318.33 and 104.02
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Solution
The fourth proportional to 212.27, 318.33 and 104.02 is: 155.99
Step by Step Solution
- Step 1: Write the proportion equation
212.27 : 318.33 = 104.02 : x - Step 2: Convert to fraction form
212.27/318.33 = 104.02/x - Step 3: Cross multiply
212.27x = 318.33 × 104.02 - Step 4: Simplify right side
212.27x = 33,111.89 - Step 5: Solve for x
x = 33,111.89/212.27 - Step 6: Final answer
x = 155.99
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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.