Finding the Fourth Proportional to 296,917.10, 409,196.09 and 210,879.84
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Solution
The fourth proportional to 296,917.10, 409,196.09 and 210,879.84 is: 290,623.90
Step by Step Solution
- Step 1: Write the proportion equation
296,917.10 : 409,196.09 = 210,879.84 : x - Step 2: Convert to fraction form
296,917.10/409,196.09 = 210,879.84/x - Step 3: Cross multiply
296,917.10x = 409,196.09 × 210,879.84 - Step 4: Simplify right side
296,917.10x = 86,291,204,933.43 - Step 5: Solve for x
x = 86,291,204,933.43/296,917.10 - Step 6: Final answer
x = 290,623.90
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1.5x scale
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.