Finding the Fourth Proportional to 394,385.76, 591,727.68 and 236,724.12
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Solution
The fourth proportional to 394,385.76, 591,727.68 and 236,724.12 is: 355,175.64
Step by Step Solution
- Step 1: Write the proportion equation
394,385.76 : 591,727.68 = 236,724.12 : x - Step 2: Convert to fraction form
394,385.76/591,727.68 = 236,724.12/x - Step 3: Cross multiply
394,385.76x = 591,727.68 × 236,724.12 - Step 4: Simplify right side
394,385.76x = 140,076,214,327.64 - Step 5: Solve for x
x = 140,076,214,327.64/394,385.76 - Step 6: Final answer
x = 355,175.64
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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.