Finding the Fourth Proportional to 202,499.48, 279,448.17 and 111,861.68
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Solution
The fourth proportional to 202,499.48, 279,448.17 and 111,861.68 is: 154,368.50
Step by Step Solution
- Step 1: Write the proportion equation
202,499.48 : 279,448.17 = 111,861.68 : x - Step 2: Convert to fraction form
202,499.48/279,448.17 = 111,861.68/x - Step 3: Cross multiply
202,499.48x = 279,448.17 × 111,861.68 - Step 4: Simplify right side
202,499.48x = 31,259,541,769.13 - Step 5: Solve for x
x = 31,259,541,769.13/202,499.48 - Step 6: Final answer
x = 154,368.50
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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.