Finding the Fourth Proportional to 312,474.05, 468,733.09 and 154,660.13
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Solution
The fourth proportional to 312,474.05, 468,733.09 and 154,660.13 is: 232,001.09
Step by Step Solution
- Step 1: Write the proportion equation
312,474.05 : 468,733.09 = 154,660.13 : x - Step 2: Convert to fraction form
312,474.05/468,733.09 = 154,660.13/x - Step 3: Cross multiply
312,474.05x = 468,733.09 × 154,660.13 - Step 4: Simplify right side
312,474.05x = 72,494,317,904.39 - Step 5: Solve for x
x = 72,494,317,904.39/312,474.05 - Step 6: Final answer
x = 232,001.09
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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.