Finding the Fourth Proportional to 280,786.36, 387,360.84 and 167,543.68
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Solution
The fourth proportional to 280,786.36, 387,360.84 and 167,543.68 is: 231,136.09
Step by Step Solution
- Step 1: Write the proportion equation
280,786.36 : 387,360.84 = 167,543.68 : x - Step 2: Convert to fraction form
280,786.36/387,360.84 = 167,543.68/x - Step 3: Cross multiply
280,786.36x = 387,360.84 × 167,543.68 - Step 4: Simplify right side
280,786.36x = 64,899,860,621.49 - Step 5: Solve for x
x = 64,899,860,621.49/280,786.36 - Step 6: Final answer
x = 231,136.09
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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.