Finding the Fourth Proportional to 283,028.47, 391,139.68 and 231,960.66
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Solution
The fourth proportional to 283,028.47, 391,139.68 and 231,960.66 is: 320,564.99
Step by Step Solution
- Step 1: Write the proportion equation
283,028.47 : 391,139.68 = 231,960.66 : x - Step 2: Convert to fraction form
283,028.47/391,139.68 = 231,960.66/x - Step 3: Cross multiply
283,028.47x = 391,139.68 × 231,960.66 - Step 4: Simplify right side
283,028.47x = 90,729,018,324.99 - Step 5: Solve for x
x = 90,729,018,324.99/283,028.47 - Step 6: Final answer
x = 320,564.99
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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.