Finding the Fourth Proportional to 274.58, 412.11 and 193.62
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Solution
The fourth proportional to 274.58, 412.11 and 193.62 is: 290.60
Step by Step Solution
- Step 1: Write the proportion equation
274.58 : 412.11 = 193.62 : x - Step 2: Convert to fraction form
274.58/412.11 = 193.62/x - Step 3: Cross multiply
274.58x = 412.11 × 193.62 - Step 4: Simplify right side
274.58x = 79,792.74 - Step 5: Solve for x
x = 79,792.74/274.58 - Step 6: Final answer
x = 290.60
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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.