Finding the Fourth Proportional to 274.33, 378.26 and 208.99
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Solution
The fourth proportional to 274.33, 378.26 and 208.99 is: 288.16
Step by Step Solution
- Step 1: Write the proportion equation
274.33 : 378.26 = 208.99 : x - Step 2: Convert to fraction form
274.33/378.26 = 208.99/x - Step 3: Cross multiply
274.33x = 378.26 × 208.99 - Step 4: Simplify right side
274.33x = 79,050.67 - Step 5: Solve for x
x = 79,050.67/274.33 - Step 6: Final answer
x = 288.16
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.