Finding the Fourth Proportional to 308,696.58, 465,358.59 and 288,121.68
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Solution
The fourth proportional to 308,696.58, 465,358.59 and 288,121.68 is: 434,342.03
Step by Step Solution
- Step 1: Write the proportion equation
308,696.58 : 465,358.59 = 288,121.68 : x - Step 2: Convert to fraction form
308,696.58/465,358.59 = 288,121.68/x - Step 3: Cross multiply
308,696.58x = 465,358.59 × 288,121.68 - Step 4: Simplify right side
308,696.58x = 134,079,898,753.23 - Step 5: Solve for x
x = 134,079,898,753.23/308,696.58 - Step 6: Final answer
x = 434,342.03
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.