Finding the Third Proportional to 128,638.13 and 341,449.17
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Solution
The third proportional to 128,638.13 and 341,449.17 is: 906,321.80
Step by Step Solution
- Step 1: Write the proportion equation
128,638.13 : 341,449.17 = 341,449.17 : x - Step 2: Convert to fraction form
128,638.13/341,449.17 = 341,449.17/x - Step 3: Cross multiply
128,638.13x = 341,449.17 × 341,449.17 - Step 4: Simplify right side
128,638.13x = 116,587,536,974.12 - Step 5: Solve for x
x = 116,587,536,974.12/128,638.13 - Step 6: Final answer
x = 906,321.80
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Why These Related Problems?
These problems maintain the same ratio (2.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.