Finding the Fourth Proportional to 409,936.48, 615,091.55 and 210,396.99
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Solution
The fourth proportional to 409,936.48, 615,091.55 and 210,396.99 is: 315,691.37
Step by Step Solution
- Step 1: Write the proportion equation
409,936.48 : 615,091.55 = 210,396.99 : x - Step 2: Convert to fraction form
409,936.48/615,091.55 = 210,396.99/x - Step 3: Cross multiply
409,936.48x = 615,091.55 × 210,396.99 - Step 4: Simplify right side
409,936.48x = 129,413,410,694.44 - Step 5: Solve for x
x = 129,413,410,694.44/409,936.48 - Step 6: Final answer
x = 315,691.37
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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.