Finding the Fourth Proportional to 431,452.67, 647,038.14 and 143,186.87
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Solution
The fourth proportional to 431,452.67, 647,038.14 and 143,186.87 is: 214,733.56
Step by Step Solution
- Step 1: Write the proportion equation
431,452.67 : 647,038.14 = 143,186.87 : x - Step 2: Convert to fraction form
431,452.67/647,038.14 = 143,186.87/x - Step 3: Cross multiply
431,452.67x = 647,038.14 × 143,186.87 - Step 4: Simplify right side
431,452.67x = 92,647,366,037.22 - Step 5: Solve for x
x = 92,647,366,037.22/431,452.67 - Step 6: Final answer
x = 214,733.56
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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.