Finding the Fourth Proportional to 205,844.09, 284,064.84 and 111,636.09
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Solution
The fourth proportional to 205,844.09, 284,064.84 and 111,636.09 is: 154,057.80
Step by Step Solution
- Step 1: Write the proportion equation
205,844.09 : 284,064.84 = 111,636.09 : x - Step 2: Convert to fraction form
205,844.09/284,064.84 = 111,636.09/x - Step 3: Cross multiply
205,844.09x = 284,064.84 × 111,636.09 - Step 4: Simplify right side
205,844.09x = 31,711,888,044.08 - Step 5: Solve for x
x = 31,711,888,044.08/205,844.09 - Step 6: Final answer
x = 154,057.80
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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.