Finding the Fourth Proportional to 369.78, 554.94 and 186.99
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Solution
The fourth proportional to 369.78, 554.94 and 186.99 is: 280.62
Step by Step Solution
- Step 1: Write the proportion equation
369.78 : 554.94 = 186.99 : x - Step 2: Convert to fraction form
369.78/554.94 = 186.99/x - Step 3: Cross multiply
369.78x = 554.94 × 186.99 - Step 4: Simplify right side
369.78x = 103,768.23 - Step 5: Solve for x
x = 103,768.23/369.78 - Step 6: Final answer
x = 280.62
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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.