Finding the Fourth Proportional to 354,436.56, 489,107.70 and 193,288.68
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Solution
The fourth proportional to 354,436.56, 489,107.70 and 193,288.68 is: 266,730.33
Step by Step Solution
- Step 1: Write the proportion equation
354,436.56 : 489,107.70 = 193,288.68 : x - Step 2: Convert to fraction form
354,436.56/489,107.70 = 193,288.68/x - Step 3: Cross multiply
354,436.56x = 489,107.70 × 193,288.68 - Step 4: Simplify right side
354,436.56x = 94,538,981,710.84 - Step 5: Solve for x
x = 94,538,981,710.84/354,436.56 - Step 6: Final answer
x = 266,730.33
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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.