Finding the Third Proportional to 128,103.19 and 271,968.75
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Solution
The third proportional to 128,103.19 and 271,968.75 is: 577,401.72
Step by Step Solution
- Step 1: Write the proportion equation
128,103.19 : 271,968.75 = 271,968.75 : x - Step 2: Convert to fraction form
128,103.19/271,968.75 = 271,968.75/x - Step 3: Cross multiply
128,103.19x = 271,968.75 × 271,968.75 - Step 4: Simplify right side
128,103.19x = 73,967,000,976.56 - Step 5: Solve for x
x = 73,967,000,976.56/128,103.19 - Step 6: Final answer
x = 577,401.72
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Why These Related Problems?
These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.