Finding the Fourth Proportional to 397,274.19, 548,249.19 and 215,998.32
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Solution
The fourth proportional to 397,274.19, 548,249.19 and 215,998.32 is: 298,083.56
Step by Step Solution
- Step 1: Write the proportion equation
397,274.19 : 548,249.19 = 215,998.32 : x - Step 2: Convert to fraction form
397,274.19/548,249.19 = 215,998.32/x - Step 3: Cross multiply
397,274.19x = 548,249.19 × 215,998.32 - Step 4: Simplify right side
397,274.19x = 118,420,903,981.36 - Step 5: Solve for x
x = 118,420,903,981.36/397,274.19 - Step 6: Final answer
x = 298,083.56
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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.