Finding the Fourth Proportional to 247.97, 371.93 and 145.19
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Solution
The fourth proportional to 247.97, 371.93 and 145.19 is: 217.76
Step by Step Solution
- Step 1: Write the proportion equation
247.97 : 371.93 = 145.19 : x - Step 2: Convert to fraction form
247.97/371.93 = 145.19/x - Step 3: Cross multiply
247.97x = 371.93 × 145.19 - Step 4: Simplify right side
247.97x = 53,997.93 - Step 5: Solve for x
x = 53,997.93/247.97 - Step 6: Final answer
x = 217.76
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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.