Finding the Fourth Proportional to 299,231.72, 412,457.38 and 202,400.26
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Solution
The fourth proportional to 299,231.72, 412,457.38 and 202,400.26 is: 278,986.07
Step by Step Solution
- Step 1: Write the proportion equation
299,231.72 : 412,457.38 = 202,400.26 : x - Step 2: Convert to fraction form
299,231.72/412,457.38 = 202,400.26/x - Step 3: Cross multiply
299,231.72x = 412,457.38 × 202,400.26 - Step 4: Simplify right side
299,231.72x = 83,481,480,950.92 - Step 5: Solve for x
x = 83,481,480,950.92/299,231.72 - Step 6: Final answer
x = 278,986.07
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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.