Finding the Fourth Proportional to 308,642.81, 425,832.57 and 201,173.63
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Solution
The fourth proportional to 308,642.81, 425,832.57 and 201,173.63 is: 277,558.01
Step by Step Solution
- Step 1: Write the proportion equation
308,642.81 : 425,832.57 = 201,173.63 : x - Step 2: Convert to fraction form
308,642.81/425,832.57 = 201,173.63/x - Step 3: Cross multiply
308,642.81x = 425,832.57 × 201,173.63 - Step 4: Simplify right side
308,642.81x = 85,666,281,749.97 - Step 5: Solve for x
x = 85,666,281,749.97/308,642.81 - Step 6: Final answer
x = 277,558.01
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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.