Finding the Third Proportional to 270,780.07 and 421,697.09
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Solution
The third proportional to 270,780.07 and 421,697.09 is: 656,726.45
Step by Step Solution
- Step 1: Write the proportion equation
270,780.07 : 421,697.09 = 421,697.09 : x - Step 2: Convert to fraction form
270,780.07/421,697.09 = 421,697.09/x - Step 3: Cross multiply
270,780.07x = 421,697.09 × 421,697.09 - Step 4: Simplify right side
270,780.07x = 177,828,434,913.50 - Step 5: Solve for x
x = 177,828,434,913.50/270,780.07 - Step 6: Final answer
x = 656,726.45
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Why These Related Problems?
These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.