Finding the Fourth Proportional to 426,441.20, 639,760.23 and 226,953.99
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Solution
The fourth proportional to 426,441.20, 639,760.23 and 226,953.99 is: 340,483.37
Step by Step Solution
- Step 1: Write the proportion equation
426,441.20 : 639,760.23 = 226,953.99 : x - Step 2: Convert to fraction form
426,441.20/639,760.23 = 226,953.99/x - Step 3: Cross multiply
426,441.20x = 639,760.23 × 226,953.99 - Step 4: Simplify right side
426,441.20x = 145,196,136,841.82 - Step 5: Solve for x
x = 145,196,136,841.82/426,441.20 - Step 6: Final answer
x = 340,483.37
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.