Finding the Fourth Proportional to 394,293.28, 544,129.92 and 224,528.08
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Solution
The fourth proportional to 394,293.28, 544,129.92 and 224,528.08 is: 309,851.71
Step by Step Solution
- Step 1: Write the proportion equation
394,293.28 : 544,129.92 = 224,528.08 : x - Step 2: Convert to fraction form
394,293.28/544,129.92 = 224,528.08/x - Step 3: Cross multiply
394,293.28x = 544,129.92 × 224,528.08 - Step 4: Simplify right side
394,293.28x = 122,172,446,208.15 - Step 5: Solve for x
x = 122,172,446,208.15/394,293.28 - Step 6: Final answer
x = 309,851.71
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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.