Finding the Fourth Proportional to 381,415.80, 526,324.62 and 220,197.24
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Solution
The fourth proportional to 381,415.80, 526,324.62 and 220,197.24 is: 303,855.34
Step by Step Solution
- Step 1: Write the proportion equation
381,415.80 : 526,324.62 = 220,197.24 : x - Step 2: Convert to fraction form
381,415.80/526,324.62 = 220,197.24/x - Step 3: Cross multiply
381,415.80x = 526,324.62 × 220,197.24 - Step 4: Simplify right side
381,415.80x = 115,895,228,668.05 - Step 5: Solve for x
x = 115,895,228,668.05/381,415.80 - Step 6: Final answer
x = 303,855.34
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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.