Finding the Fourth Proportional to 320,579.25, 442,361.09 and 177,319.82
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Solution
The fourth proportional to 320,579.25, 442,361.09 and 177,319.82 is: 244,680.17
Step by Step Solution
- Step 1: Write the proportion equation
320,579.25 : 442,361.09 = 177,319.82 : x - Step 2: Convert to fraction form
320,579.25/442,361.09 = 177,319.82/x - Step 3: Cross multiply
320,579.25x = 442,361.09 × 177,319.82 - Step 4: Simplify right side
320,579.25x = 78,439,385,755.40 - Step 5: Solve for x
x = 78,439,385,755.40/320,579.25 - Step 6: Final answer
x = 244,680.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.