Finding the Fourth Proportional to 205,871.69, 284,104.35 and 115,236.05
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Solution
The fourth proportional to 205,871.69, 284,104.35 and 115,236.05 is: 159,026.53
Step by Step Solution
- Step 1: Write the proportion equation
205,871.69 : 284,104.35 = 115,236.05 : x - Step 2: Convert to fraction form
205,871.69/284,104.35 = 115,236.05/x - Step 3: Cross multiply
205,871.69x = 284,104.35 × 115,236.05 - Step 4: Simplify right side
205,871.69x = 32,739,061,661.30 - Step 5: Solve for x
x = 32,739,061,661.30/205,871.69 - Step 6: Final answer
x = 159,026.53
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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.