Finding the Fourth Proportional to 396,399.16, 547,027.98 and 215,106.52
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Solution
The fourth proportional to 396,399.16, 547,027.98 and 215,106.52 is: 296,845.45
Step by Step Solution
- Step 1: Write the proportion equation
396,399.16 : 547,027.98 = 215,106.52 : x - Step 2: Convert to fraction form
396,399.16/547,027.98 = 215,106.52/x - Step 3: Cross multiply
396,399.16x = 547,027.98 × 215,106.52 - Step 4: Simplify right side
396,399.16x = 117,669,285,120.43 - Step 5: Solve for x
x = 117,669,285,120.43/396,399.16 - Step 6: Final answer
x = 296,845.45
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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.