Finding the Fourth Proportional to 248.44, 372.21 and 126.70
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Solution
The fourth proportional to 248.44, 372.21 and 126.70 is: 189.82
Step by Step Solution
- Step 1: Write the proportion equation
248.44 : 372.21 = 126.70 : x - Step 2: Convert to fraction form
248.44/372.21 = 126.70/x - Step 3: Cross multiply
248.44x = 372.21 × 126.70 - Step 4: Simplify right side
248.44x = 47,159.01 - Step 5: Solve for x
x = 47,159.01/248.44 - Step 6: Final answer
x = 189.82
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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.