Finding the Fourth Proportional to 397,543.12, 548,623.92 and 227,810.08
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Solution
The fourth proportional to 397,543.12, 548,623.92 and 227,810.08 is: 314,386.17
Step by Step Solution
- Step 1: Write the proportion equation
397,543.12 : 548,623.92 = 227,810.08 : x - Step 2: Convert to fraction form
397,543.12/548,623.92 = 227,810.08/x - Step 3: Cross multiply
397,543.12x = 548,623.92 × 227,810.08 - Step 4: Simplify right side
397,543.12x = 124,982,059,105.11 - Step 5: Solve for x
x = 124,982,059,105.11/397,543.12 - Step 6: Final answer
x = 314,386.17
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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.