Finding the Fourth Proportional to 397,595.05, 548,640.20 and 236,418.95
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Solution
The fourth proportional to 397,595.05, 548,640.20 and 236,418.95 is: 326,233.80
Step by Step Solution
- Step 1: Write the proportion equation
397,595.05 : 548,640.20 = 236,418.95 : x - Step 2: Convert to fraction form
397,595.05/548,640.20 = 236,418.95/x - Step 3: Cross multiply
397,595.05x = 548,640.20 × 236,418.95 - Step 4: Simplify right side
397,595.05x = 129,708,941,974.44 - Step 5: Solve for x
x = 129,708,941,974.44/397,595.05 - Step 6: Final answer
x = 326,233.80
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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.