Finding the Fourth Proportional to 274.99, 379.23 and 247.66
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Solution
The fourth proportional to 274.99, 379.23 and 247.66 is: 341.53
Step by Step Solution
- Step 1: Write the proportion equation
274.99 : 379.23 = 247.66 : x - Step 2: Convert to fraction form
274.99/379.23 = 247.66/x - Step 3: Cross multiply
274.99x = 379.23 × 247.66 - Step 4: Simplify right side
274.99x = 93,918.21 - Step 5: Solve for x
x = 93,918.21/274.99 - Step 6: Final answer
x = 341.53
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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.