Finding the Fourth Proportional to 171,629.80, 257,444.70 and 115,642.60
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Solution
The fourth proportional to 171,629.80, 257,444.70 and 115,642.60 is: 173,463.90
Step by Step Solution
- Step 1: Write the proportion equation
171,629.80 : 257,444.70 = 115,642.60 : x - Step 2: Convert to fraction form
171,629.80/257,444.70 = 115,642.60/x - Step 3: Cross multiply
171,629.80x = 257,444.70 × 115,642.60 - Step 4: Simplify right side
171,629.80x = 29,771,574,464.22 - Step 5: Solve for x
x = 29,771,574,464.22/171,629.80 - Step 6: Final answer
x = 173,463.90
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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.