Finding the Third Proportional to 128,218.21 and 296,801.96
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Solution
The third proportional to 128,218.21 and 296,801.96 is: 687,042.80
Step by Step Solution
- Step 1: Write the proportion equation
128,218.21 : 296,801.96 = 296,801.96 : x - Step 2: Convert to fraction form
128,218.21/296,801.96 = 296,801.96/x - Step 3: Cross multiply
128,218.21x = 296,801.96 × 296,801.96 - Step 4: Simplify right side
128,218.21x = 88,091,401,117.88 - Step 5: Solve for x
x = 88,091,401,117.88/128,218.21 - Step 6: Final answer
x = 687,042.80
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Why These Related Problems?
These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.