Finding the Fourth Proportional to 253,270.92, 378,939.15 and 221,445.99
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Solution
The fourth proportional to 253,270.92, 378,939.15 and 221,445.99 is: 331,323.29
Step by Step Solution
- Step 1: Write the proportion equation
253,270.92 : 378,939.15 = 221,445.99 : x - Step 2: Convert to fraction form
253,270.92/378,939.15 = 221,445.99/x - Step 3: Cross multiply
253,270.92x = 378,939.15 × 221,445.99 - Step 4: Simplify right side
253,270.92x = 83,914,555,221.51 - Step 5: Solve for x
x = 83,914,555,221.51/253,270.92 - Step 6: Final answer
x = 331,323.29
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.