Finding the Fourth Proportional to 397,469.07, 548,479.08 and 216,177.30
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Solution
The fourth proportional to 397,469.07, 548,479.08 and 216,177.30 is: 298,309.32
Step by Step Solution
- Step 1: Write the proportion equation
397,469.07 : 548,479.08 = 216,177.30 : x - Step 2: Convert to fraction form
397,469.07/548,479.08 = 216,177.30/x - Step 3: Cross multiply
397,469.07x = 548,479.08 × 216,177.30 - Step 4: Simplify right side
397,469.07x = 118,568,726,620.88 - Step 5: Solve for x
x = 118,568,726,620.88/397,469.07 - Step 6: Final answer
x = 298,309.32
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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.