Finding the Fourth Proportional to 491,382.98, 737,078.60 and 136,424.68
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Solution
The fourth proportional to 491,382.98, 737,078.60 and 136,424.68 is: 204,638.17
Step by Step Solution
- Step 1: Write the proportion equation
491,382.98 : 737,078.60 = 136,424.68 : x - Step 2: Convert to fraction form
491,382.98/737,078.60 = 136,424.68/x - Step 3: Cross multiply
491,382.98x = 737,078.60 × 136,424.68 - Step 4: Simplify right side
491,382.98x = 100,555,712,139.85 - Step 5: Solve for x
x = 100,555,712,139.85/491,382.98 - Step 6: Final answer
x = 204,638.17
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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.