Finding the Fourth Proportional to 256,952.36, 354,604.20 and 143,772.68
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Solution
The fourth proportional to 256,952.36, 354,604.20 and 143,772.68 is: 198,411.86
Step by Step Solution
- Step 1: Write the proportion equation
256,952.36 : 354,604.20 = 143,772.68 : x - Step 2: Convert to fraction form
256,952.36/354,604.20 = 143,772.68/x - Step 3: Cross multiply
256,952.36x = 354,604.20 × 143,772.68 - Step 4: Simplify right side
256,952.36x = 50,982,396,173.26 - Step 5: Solve for x
x = 50,982,396,173.26/256,952.36 - Step 6: Final answer
x = 198,411.86
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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.