Finding the Third Proportional to 128,319.19 and 264,775.08
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Solution
The third proportional to 128,319.19 and 264,775.08 is: 546,339.51
Step by Step Solution
- Step 1: Write the proportion equation
128,319.19 : 264,775.08 = 264,775.08 : x - Step 2: Convert to fraction form
128,319.19/264,775.08 = 264,775.08/x - Step 3: Cross multiply
128,319.19x = 264,775.08 × 264,775.08 - Step 4: Simplify right side
128,319.19x = 70,105,841,996.10 - Step 5: Solve for x
x = 70,105,841,996.10/128,319.19 - Step 6: Final answer
x = 546,339.51
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Why These Related Problems?
These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.