Finding the Third Proportional to 290,278.50 and 439,791.75
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Solution
The third proportional to 290,278.50 and 439,791.75 is: 666,314.53
Step by Step Solution
- Step 1: Write the proportion equation
290,278.50 : 439,791.75 = 439,791.75 : x - Step 2: Convert to fraction form
290,278.50/439,791.75 = 439,791.75/x - Step 3: Cross multiply
290,278.50x = 439,791.75 × 439,791.75 - Step 4: Simplify right side
290,278.50x = 193,416,783,368.06 - Step 5: Solve for x
x = 193,416,783,368.06/290,278.50 - Step 6: Final answer
x = 666,314.53
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Why These Related Problems?
These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.