Finding the Third Proportional to 66,678.19 and 145,339.31
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Solution
The third proportional to 66,678.19 and 145,339.31 is: 316,797.99
Step by Step Solution
- Step 1: Write the proportion equation
66,678.19 : 145,339.31 = 145,339.31 : x - Step 2: Convert to fraction form
66,678.19/145,339.31 = 145,339.31/x - Step 3: Cross multiply
66,678.19x = 145,339.31 × 145,339.31 - Step 4: Simplify right side
66,678.19x = 21,123,515,757.97 - Step 5: Solve for x
x = 21,123,515,757.97/66,678.19 - Step 6: Final answer
x = 316,797.99
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Why These Related Problems?
These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.