Finding the Fourth Proportional to 354,935.26, 489,821.47 and 201,995.45
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Solution
The fourth proportional to 354,935.26, 489,821.47 and 201,995.45 is: 278,759.87
Step by Step Solution
- Step 1: Write the proportion equation
354,935.26 : 489,821.47 = 201,995.45 : x - Step 2: Convert to fraction form
354,935.26/489,821.47 = 201,995.45/x - Step 3: Cross multiply
354,935.26x = 489,821.47 × 201,995.45 - Step 4: Simplify right side
354,935.26x = 98,941,708,252.31 - Step 5: Solve for x
x = 98,941,708,252.31/354,935.26 - Step 6: Final answer
x = 278,759.87
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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.