Finding the Third Proportional to 77,721.75 and 170,259.75
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Solution
The third proportional to 77,721.75 and 170,259.75 is: 372,976.45
Step by Step Solution
- Step 1: Write the proportion equation
77,721.75 : 170,259.75 = 170,259.75 : x - Step 2: Convert to fraction form
77,721.75/170,259.75 = 170,259.75/x - Step 3: Cross multiply
77,721.75x = 170,259.75 × 170,259.75 - Step 4: Simplify right side
77,721.75x = 28,988,382,470.06 - Step 5: Solve for x
x = 28,988,382,470.06/77,721.75 - Step 6: Final answer
x = 372,976.45
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Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.