Finding the Third Proportional to 138,418.88 and 212,199.75
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Solution
The third proportional to 138,418.88 and 212,199.75 is: 325,307.76
Step by Step Solution
- Step 1: Write the proportion equation
138,418.88 : 212,199.75 = 212,199.75 : x - Step 2: Convert to fraction form
138,418.88/212,199.75 = 212,199.75/x - Step 3: Cross multiply
138,418.88x = 212,199.75 × 212,199.75 - Step 4: Simplify right side
138,418.88x = 45,028,733,900.06 - Step 5: Solve for x
x = 45,028,733,900.06/138,418.88 - Step 6: Final answer
x = 325,307.76
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Why These Related Problems?
These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.