Finding the Fourth Proportional to 199,887.02, 275,817.43 and 128,363.92
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Solution
The fourth proportional to 199,887.02, 275,817.43 and 128,363.92 is: 177,125.09
Step by Step Solution
- Step 1: Write the proportion equation
199,887.02 : 275,817.43 = 128,363.92 : x - Step 2: Convert to fraction form
199,887.02/275,817.43 = 128,363.92/x - Step 3: Cross multiply
199,887.02x = 275,817.43 × 128,363.92 - Step 4: Simplify right side
199,887.02x = 35,405,006,519.13 - Step 5: Solve for x
x = 35,405,006,519.13/199,887.02 - Step 6: Final answer
x = 177,125.09
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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.