Finding the Third Proportional to 212,694.19 and 319,041.28
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Solution
The third proportional to 212,694.19 and 319,041.28 is: 478,561.92
Step by Step Solution
- Step 1: Write the proportion equation
212,694.19 : 319,041.28 = 319,041.28 : x - Step 2: Convert to fraction form
212,694.19/319,041.28 = 319,041.28/x - Step 3: Cross multiply
212,694.19x = 319,041.28 × 319,041.28 - Step 4: Simplify right side
212,694.19x = 101,787,339,141.64 - Step 5: Solve for x
x = 101,787,339,141.64/212,694.19 - Step 6: Final answer
x = 478,561.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.