Finding the Fourth Proportional to 274.48, 378.58 and 248.08
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Solution
The fourth proportional to 274.48, 378.58 and 248.08 is: 342.17
Step by Step Solution
- Step 1: Write the proportion equation
274.48 : 378.58 = 248.08 : x - Step 2: Convert to fraction form
274.48/378.58 = 248.08/x - Step 3: Cross multiply
274.48x = 378.58 × 248.08 - Step 4: Simplify right side
274.48x = 93,918.13 - Step 5: Solve for x
x = 93,918.13/274.48 - Step 6: Final answer
x = 342.17
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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.