Finding the Fourth Proportional to 396,472.97, 547,133.21 and 215,184.88
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Solution
The fourth proportional to 396,472.97, 547,133.21 and 215,184.88 is: 296,955.41
Step by Step Solution
- Step 1: Write the proportion equation
396,472.97 : 547,133.21 = 215,184.88 : x - Step 2: Convert to fraction form
396,472.97/547,133.21 = 215,184.88/x - Step 3: Cross multiply
396,472.97x = 547,133.21 × 215,184.88 - Step 4: Simplify right side
396,472.97x = 117,734,795,763.22 - Step 5: Solve for x
x = 117,734,795,763.22/396,472.97 - Step 6: Final answer
x = 296,955.41
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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.