Finding the Third Proportional to 30,378.38 and 66,291.75
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Solution
The third proportional to 30,378.38 and 66,291.75 is: 144,661.99
Step by Step Solution
- Step 1: Write the proportion equation
30,378.38 : 66,291.75 = 66,291.75 : x - Step 2: Convert to fraction form
30,378.38/66,291.75 = 66,291.75/x - Step 3: Cross multiply
30,378.38x = 66,291.75 × 66,291.75 - Step 4: Simplify right side
30,378.38x = 4,394,596,118.06 - Step 5: Solve for x
x = 4,394,596,118.06/30,378.38 - Step 6: Final answer
x = 144,661.99
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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.