Finding the Fourth Proportional to 285,752.76, 394,259.16 and 225,135.60
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Solution
The fourth proportional to 285,752.76, 394,259.16 and 225,135.60 is: 310,624.38
Step by Step Solution
- Step 1: Write the proportion equation
285,752.76 : 394,259.16 = 225,135.60 : x - Step 2: Convert to fraction form
285,752.76/394,259.16 = 225,135.60/x - Step 3: Cross multiply
285,752.76x = 394,259.16 × 225,135.60 - Step 4: Simplify right side
285,752.76x = 88,761,772,542.10 - Step 5: Solve for x
x = 88,761,772,542.10/285,752.76 - Step 6: Final answer
x = 310,624.38
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1.5x scale
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.