Finding the Fourth Proportional to 311,930.73, 430,465.59 and 168,691.95
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Solution
The fourth proportional to 311,930.73, 430,465.59 and 168,691.95 is: 232,795.53
Step by Step Solution
- Step 1: Write the proportion equation
311,930.73 : 430,465.59 = 168,691.95 : x - Step 2: Convert to fraction form
311,930.73/430,465.59 = 168,691.95/x - Step 3: Cross multiply
311,930.73x = 430,465.59 × 168,691.95 - Step 4: Simplify right side
311,930.73x = 72,616,079,785.00 - Step 5: Solve for x
x = 72,616,079,785.00/311,930.73 - Step 6: Final answer
x = 232,795.53
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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.