Finding the Fourth Proportional to 397,686.97, 548,626.53 and 236,450.26
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Solution
The fourth proportional to 397,686.97, 548,626.53 and 236,450.26 is: 326,193.45
Step by Step Solution
- Step 1: Write the proportion equation
397,686.97 : 548,626.53 = 236,450.26 : x - Step 2: Convert to fraction form
397,686.97/548,626.53 = 236,450.26/x - Step 3: Cross multiply
397,686.97x = 548,626.53 × 236,450.26 - Step 4: Simplify right side
397,686.97x = 129,722,885,661.40 - Step 5: Solve for x
x = 129,722,885,661.40/397,686.97 - Step 6: Final answer
x = 326,193.45
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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.