Finding the Fourth Proportional to 397,395.57, 548,383.71 and 227,640.63
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Solution
The fourth proportional to 397,395.57, 548,383.71 and 227,640.63 is: 314,131.37
Step by Step Solution
- Step 1: Write the proportion equation
397,395.57 : 548,383.71 = 227,640.63 : x - Step 2: Convert to fraction form
397,395.57/548,383.71 = 227,640.63/x - Step 3: Cross multiply
397,395.57x = 548,383.71 × 227,640.63 - Step 4: Simplify right side
397,395.57x = 124,834,413,226.14 - Step 5: Solve for x
x = 124,834,413,226.14/397,395.57 - Step 6: Final answer
x = 314,131.37
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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.