Finding the Fourth Proportional to 236,806.12, 326,795.34 and 129,377.44
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Solution
The fourth proportional to 236,806.12, 326,795.34 and 129,377.44 is: 178,542.45
Step by Step Solution
- Step 1: Write the proportion equation
236,806.12 : 326,795.34 = 129,377.44 : x - Step 2: Convert to fraction form
236,806.12/326,795.34 = 129,377.44/x - Step 3: Cross multiply
236,806.12x = 326,795.34 × 129,377.44 - Step 4: Simplify right side
236,806.12x = 42,279,944,493.13 - Step 5: Solve for x
x = 42,279,944,493.13/236,806.12 - Step 6: Final answer
x = 178,542.45
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1.5x scale
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.