Finding the Fourth Proportional to 268,660.39, 402,976.01 and 81,657.31
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Solution
The fourth proportional to 268,660.39, 402,976.01 and 81,657.31 is: 122,481.54
Step by Step Solution
- Step 1: Write the proportion equation
268,660.39 : 402,976.01 = 81,657.31 : x - Step 2: Convert to fraction form
268,660.39/402,976.01 = 81,657.31/x - Step 3: Cross multiply
268,660.39x = 402,976.01 × 81,657.31 - Step 4: Simplify right side
268,660.39x = 32,905,936,971.13 - Step 5: Solve for x
x = 32,905,936,971.13/268,660.39 - Step 6: Final answer
x = 122,481.54
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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.