Finding the Fourth Proportional to 397,357.09, 548,355.64 and 216,067.72
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Solution
The fourth proportional to 397,357.09, 548,355.64 and 216,067.72 is: 298,175.00
Step by Step Solution
- Step 1: Write the proportion equation
397,357.09 : 548,355.64 = 216,067.72 : x - Step 2: Convert to fraction form
397,357.09/548,355.64 = 216,067.72/x - Step 3: Cross multiply
397,357.09x = 548,355.64 × 216,067.72 - Step 4: Simplify right side
397,357.09x = 118,481,952,406.18 - Step 5: Solve for x
x = 118,481,952,406.18/397,357.09 - Step 6: Final answer
x = 298,175.00
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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.