Finding the Fourth Proportional to 274,867.20, 379,299.24 and 161,668.08
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Solution
The fourth proportional to 274,867.20, 379,299.24 and 161,668.08 is: 223,091.66
Step by Step Solution
- Step 1: Write the proportion equation
274,867.20 : 379,299.24 = 161,668.08 : x - Step 2: Convert to fraction form
274,867.20/379,299.24 = 161,668.08/x - Step 3: Cross multiply
274,867.20x = 379,299.24 × 161,668.08 - Step 4: Simplify right side
274,867.20x = 61,320,579,876.26 - Step 5: Solve for x
x = 61,320,579,876.26/274,867.20 - Step 6: Final answer
x = 223,091.66
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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.