Finding the Fourth Proportional to 396,465.63, 547,123.11 and 215,177.57
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Solution
The fourth proportional to 396,465.63, 547,123.11 and 215,177.57 is: 296,945.33
Step by Step Solution
- Step 1: Write the proportion equation
396,465.63 : 547,123.11 = 215,177.57 : x - Step 2: Convert to fraction form
396,465.63/547,123.11 = 215,177.57/x - Step 3: Cross multiply
396,465.63x = 547,123.11 × 215,177.57 - Step 4: Simplify right side
396,465.63x = 117,728,618,565.03 - Step 5: Solve for x
x = 117,728,618,565.03/396,465.63 - Step 6: Final answer
x = 296,945.33
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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.