Finding the Fourth Proportional to 225,731.44, 311,507.67 and 123,755.68
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Solution
The fourth proportional to 225,731.44, 311,507.67 and 123,755.68 is: 170,781.90
Step by Step Solution
- Step 1: Write the proportion equation
225,731.44 : 311,507.67 = 123,755.68 : x - Step 2: Convert to fraction form
225,731.44/311,507.67 = 123,755.68/x - Step 3: Cross multiply
225,731.44x = 311,507.67 × 123,755.68 - Step 4: Simplify right side
225,731.44x = 38,550,843,526.07 - Step 5: Solve for x
x = 38,550,843,526.07/225,731.44 - Step 6: Final answer
x = 170,781.90
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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.