Finding the Fourth Proportional to 394,905.07, 544,402.16 and 281,530.99
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Solution
The fourth proportional to 394,905.07, 544,402.16 and 281,530.99 is: 388,108.66
Step by Step Solution
- Step 1: Write the proportion equation
394,905.07 : 544,402.16 = 281,530.99 : x - Step 2: Convert to fraction form
394,905.07/544,402.16 = 281,530.99/x - Step 3: Cross multiply
394,905.07x = 544,402.16 × 281,530.99 - Step 4: Simplify right side
394,905.07x = 153,266,076,340.93 - Step 5: Solve for x
x = 153,266,076,340.93/394,905.07 - Step 6: Final answer
x = 388,108.66
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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.