Finding the Fourth Proportional to 397,293.09, 548,246.70 and 225,208.59
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Solution
The fourth proportional to 397,293.09, 548,246.70 and 225,208.59 is: 310,777.79
Step by Step Solution
- Step 1: Write the proportion equation
397,293.09 : 548,246.70 = 225,208.59 : x - Step 2: Convert to fraction form
397,293.09/548,246.70 = 225,208.59/x - Step 3: Cross multiply
397,293.09x = 548,246.70 × 225,208.59 - Step 4: Simplify right side
397,293.09x = 123,469,868,335.08 - Step 5: Solve for x
x = 123,469,868,335.08/397,293.09 - Step 6: Final answer
x = 310,777.79
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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.