Finding the Fourth Proportional to 221,757.44, 306,025.24 and 121,155.44
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Solution
The fourth proportional to 221,757.44, 306,025.24 and 121,155.44 is: 167,194.49
Step by Step Solution
- Step 1: Write the proportion equation
221,757.44 : 306,025.24 = 121,155.44 : x - Step 2: Convert to fraction form
221,757.44/306,025.24 = 121,155.44/x - Step 3: Cross multiply
221,757.44x = 306,025.24 × 121,155.44 - Step 4: Simplify right side
221,757.44x = 37,076,622,603.31 - Step 5: Solve for x
x = 37,076,622,603.31/221,757.44 - Step 6: Final answer
x = 167,194.49
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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.