Finding the Fourth Proportional to 280,465.93, 420,883.17 and 102,974.68
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Solution
The fourth proportional to 280,465.93, 420,883.17 and 102,974.68 is: 154,529.68
Step by Step Solution
- Step 1: Write the proportion equation
280,465.93 : 420,883.17 = 102,974.68 : x - Step 2: Convert to fraction form
280,465.93/420,883.17 = 102,974.68/x - Step 3: Cross multiply
280,465.93x = 420,883.17 × 102,974.68 - Step 4: Simplify right side
280,465.93x = 43,340,309,748.14 - Step 5: Solve for x
x = 43,340,309,748.14/280,465.93 - Step 6: Final answer
x = 154,529.68
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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.