Finding the Fourth Proportional to 397,542.12, 548,622.54 and 227,809.08
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Solution
The fourth proportional to 397,542.12, 548,622.54 and 227,809.08 is: 314,384.79
Step by Step Solution
- Step 1: Write the proportion equation
397,542.12 : 548,622.54 = 227,809.08 : x - Step 2: Convert to fraction form
397,542.12/548,622.54 = 227,809.08/x - Step 3: Cross multiply
397,542.12x = 548,622.54 × 227,809.08 - Step 4: Simplify right side
397,542.12x = 124,981,196,104.66 - Step 5: Solve for x
x = 124,981,196,104.66/397,542.12 - Step 6: Final answer
x = 314,384.79
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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.