Finding the Fourth Proportional to 212.97, 293.99 and 130.05
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Solution
The fourth proportional to 212.97, 293.99 and 130.05 is: 179.52
Step by Step Solution
- Step 1: Write the proportion equation
212.97 : 293.99 = 130.05 : x - Step 2: Convert to fraction form
212.97/293.99 = 130.05/x - Step 3: Cross multiply
212.97x = 293.99 × 130.05 - Step 4: Simplify right side
212.97x = 38,232.75 - Step 5: Solve for x
x = 38,232.75/212.97 - Step 6: Final answer
x = 179.52
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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.