Finding the Fourth Proportional to 396,536.58, 547,205.76 and 215,244.68
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Solution
The fourth proportional to 396,536.58, 547,205.76 and 215,244.68 is: 297,029.66
Step by Step Solution
- Step 1: Write the proportion equation
396,536.58 : 547,205.76 = 215,244.68 : x - Step 2: Convert to fraction form
396,536.58/547,205.76 = 215,244.68/x - Step 3: Cross multiply
396,536.58x = 547,205.76 × 215,244.68 - Step 4: Simplify right side
396,536.58x = 117,783,125,969.33 - Step 5: Solve for x
x = 117,783,125,969.33/396,536.58 - Step 6: Final answer
x = 297,029.66
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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.