Finding the Fourth Proportional to 248.99, 372.80 and 126.66
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Solution
The fourth proportional to 248.99, 372.80 and 126.66 is: 189.65
Step by Step Solution
- Step 1: Write the proportion equation
248.99 : 372.80 = 126.66 : x - Step 2: Convert to fraction form
248.99/372.80 = 126.66/x - Step 3: Cross multiply
248.99x = 372.80 × 126.66 - Step 4: Simplify right side
248.99x = 47,220.56 - Step 5: Solve for x
x = 47,220.56/248.99 - Step 6: Final answer
x = 189.65
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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.