Finding the Fourth Proportional to 405,821.28, 608,336.16 and 169,231.68
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Solution
The fourth proportional to 405,821.28, 608,336.16 and 169,231.68 is: 253,682.48
Step by Step Solution
- Step 1: Write the proportion equation
405,821.28 : 608,336.16 = 169,231.68 : x - Step 2: Convert to fraction form
405,821.28/608,336.16 = 169,231.68/x - Step 3: Cross multiply
405,821.28x = 608,336.16 × 169,231.68 - Step 4: Simplify right side
405,821.28x = 102,949,750,361.55 - Step 5: Solve for x
x = 102,949,750,361.55/405,821.28 - Step 6: Final answer
x = 253,682.48
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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.