Finding the Fourth Proportional to 212.84, 318.99 and 97.26
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Solution
The fourth proportional to 212.84, 318.99 and 97.26 is: 145.76
Step by Step Solution
- Step 1: Write the proportion equation
212.84 : 318.99 = 97.26 : x - Step 2: Convert to fraction form
212.84/318.99 = 97.26/x - Step 3: Cross multiply
212.84x = 318.99 × 97.26 - Step 4: Simplify right side
212.84x = 31,024.14 - Step 5: Solve for x
x = 31,024.14/212.84 - Step 6: Final answer
x = 145.76
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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.