Finding the Fourth Proportional to 482,296.20, 665,520.81 and 278,412.81
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Solution
The fourth proportional to 482,296.20, 665,520.81 and 278,412.81 is: 384,181.99
Step by Step Solution
- Step 1: Write the proportion equation
482,296.20 : 665,520.81 = 278,412.81 : x - Step 2: Convert to fraction form
482,296.20/665,520.81 = 278,412.81/x - Step 3: Cross multiply
482,296.20x = 665,520.81 × 278,412.81 - Step 4: Simplify right side
482,296.20x = 185,289,515,817.84 - Step 5: Solve for x
x = 185,289,515,817.84/482,296.20 - Step 6: Final answer
x = 384,181.99
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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.