Finding the Fourth Proportional to 395.84, 546.36 and 248.36
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Solution
The fourth proportional to 395.84, 546.36 and 248.36 is: 342.80
Step by Step Solution
- Step 1: Write the proportion equation
395.84 : 546.36 = 248.36 : x - Step 2: Convert to fraction form
395.84/546.36 = 248.36/x - Step 3: Cross multiply
395.84x = 546.36 × 248.36 - Step 4: Simplify right side
395.84x = 135,693.97 - Step 5: Solve for x
x = 135,693.97/395.84 - Step 6: Final answer
x = 342.80
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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.