Finding the Third Proportional to 78,747.75 and 172,805.63
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Solution
The third proportional to 78,747.75 and 172,805.63 is: 379,208.09
Step by Step Solution
- Step 1: Write the proportion equation
78,747.75 : 172,805.63 = 172,805.63 : x - Step 2: Convert to fraction form
78,747.75/172,805.63 = 172,805.63/x - Step 3: Cross multiply
78,747.75x = 172,805.63 × 172,805.63 - Step 4: Simplify right side
78,747.75x = 29,861,784,031.64 - Step 5: Solve for x
x = 29,861,784,031.64/78,747.75 - Step 6: Final answer
x = 379,208.09
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These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.