Finding the Fourth Proportional to 394,408.16, 544,283.28 and 215,560.16
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Solution
The fourth proportional to 394,408.16, 544,283.28 and 215,560.16 is: 297,473.03
Step by Step Solution
- Step 1: Write the proportion equation
394,408.16 : 544,283.28 = 215,560.16 : x - Step 2: Convert to fraction form
394,408.16/544,283.28 = 215,560.16/x - Step 3: Cross multiply
394,408.16x = 544,283.28 × 215,560.16 - Step 4: Simplify right side
394,408.16x = 117,325,790,922.13 - Step 5: Solve for x
x = 117,325,790,922.13/394,408.16 - Step 6: Final answer
x = 297,473.03
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1.5x scale
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.