Finding the Third Proportional to 121.50 and 229
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Solution
The third proportional to 121.50 and 229 is: 431.61
Step by Step Solution
- Step 1: Write the proportion equation
121.50 : 229 = 229 : x - Step 2: Convert to fraction form
121.50/229 = 229/x - Step 3: Cross multiply
121.50x = 229 × 229 - Step 4: Simplify right side
121.50x = 52,441 - Step 5: Solve for x
x = 52,441/121.50 - Step 6: Final answer
x = 431.61
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Why These Related Problems?
These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.