Finding the Fourth Proportional to 396,410.14, 547,046.33 and 215,122.07
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Solution
The fourth proportional to 396,410.14, 547,046.33 and 215,122.07 is: 296,868.64
Step by Step Solution
- Step 1: Write the proportion equation
396,410.14 : 547,046.33 = 215,122.07 : x - Step 2: Convert to fraction form
396,410.14/547,046.33 = 215,122.07/x - Step 3: Cross multiply
396,410.14x = 547,046.33 × 215,122.07 - Step 4: Simplify right side
396,410.14x = 117,681,736,698.08 - Step 5: Solve for x
x = 117,681,736,698.08/396,410.14 - Step 6: Final answer
x = 296,868.64
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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.