Finding the Fourth Proportional to 236,650.10, 326,578.34 and 129,220.13
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Solution
The fourth proportional to 236,650.10, 326,578.34 and 129,220.13 is: 178,324.43
Step by Step Solution
- Step 1: Write the proportion equation
236,650.10 : 326,578.34 = 129,220.13 : x - Step 2: Convert to fraction form
236,650.10/326,578.34 = 129,220.13/x - Step 3: Cross multiply
236,650.10x = 326,578.34 × 129,220.13 - Step 4: Simplify right side
236,650.10x = 42,200,494,903.88 - Step 5: Solve for x
x = 42,200,494,903.88/236,650.10 - Step 6: Final answer
x = 178,324.43
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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.