Finding the Fourth Proportional to 349.05, 523.43 and 132.49
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Solution
The fourth proportional to 349.05, 523.43 and 132.49 is: 198.68
Step by Step Solution
- Step 1: Write the proportion equation
349.05 : 523.43 = 132.49 : x - Step 2: Convert to fraction form
349.05/523.43 = 132.49/x - Step 3: Cross multiply
349.05x = 523.43 × 132.49 - Step 4: Simplify right side
349.05x = 69,349.24 - Step 5: Solve for x
x = 69,349.24/349.05 - Step 6: Final answer
x = 198.68
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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.