Finding the Fourth Proportional to 394,938.68, 545,044.62 and 225,177.08
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Solution
The fourth proportional to 394,938.68, 545,044.62 and 225,177.08 is: 310,761.04
Step by Step Solution
- Step 1: Write the proportion equation
394,938.68 : 545,044.62 = 225,177.08 : x - Step 2: Convert to fraction form
394,938.68/545,044.62 = 225,177.08/x - Step 3: Cross multiply
394,938.68x = 545,044.62 × 225,177.08 - Step 4: Simplify right side
394,938.68x = 122,731,556,001.31 - Step 5: Solve for x
x = 122,731,556,001.31/394,938.68 - Step 6: Final answer
x = 310,761.04
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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.