Finding the Fourth Proportional to 349.18, 523.68 and 132.82
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Solution
The fourth proportional to 349.18, 523.68 and 132.82 is: 199.20
Step by Step Solution
- Step 1: Write the proportion equation
349.18 : 523.68 = 132.82 : x - Step 2: Convert to fraction form
349.18/523.68 = 132.82/x - Step 3: Cross multiply
349.18x = 523.68 × 132.82 - Step 4: Simplify right side
349.18x = 69,555.18 - Step 5: Solve for x
x = 69,555.18/349.18 - Step 6: Final answer
x = 199.20
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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.