Finding the Fourth Proportional to 425,636.70, 638,163.45 and 201,104.70
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Solution
The fourth proportional to 425,636.70, 638,163.45 and 201,104.70 is: 301,519.27
Step by Step Solution
- Step 1: Write the proportion equation
425,636.70 : 638,163.45 = 201,104.70 : x - Step 2: Convert to fraction form
425,636.70/638,163.45 = 201,104.70/x - Step 3: Cross multiply
425,636.70x = 638,163.45 × 201,104.70 - Step 4: Simplify right side
425,636.70x = 128,337,669,163.22 - Step 5: Solve for x
x = 128,337,669,163.22/425,636.70 - Step 6: Final answer
x = 301,519.27
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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.