Finding the Fourth Proportional to 389,932.93, 538,140.41 and 220,197.97
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Solution
The fourth proportional to 389,932.93, 538,140.41 and 220,197.97 is: 303,891.82
Step by Step Solution
- Step 1: Write the proportion equation
389,932.93 : 538,140.41 = 220,197.97 : x - Step 2: Convert to fraction form
389,932.93/538,140.41 = 220,197.97/x - Step 3: Cross multiply
389,932.93x = 538,140.41 × 220,197.97 - Step 4: Simplify right side
389,932.93x = 118,497,425,856.97 - Step 5: Solve for x
x = 118,497,425,856.97/389,932.93 - Step 6: Final answer
x = 303,891.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.