Finding the Fourth Proportional to 311,874.06, 430,386.51 and 168,634.06
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Solution
The fourth proportional to 311,874.06, 430,386.51 and 168,634.06 is: 232,715.17
Step by Step Solution
- Step 1: Write the proportion equation
311,874.06 : 430,386.51 = 168,634.06 : x - Step 2: Convert to fraction form
311,874.06/430,386.51 = 168,634.06/x - Step 3: Cross multiply
311,874.06x = 430,386.51 × 168,634.06 - Step 4: Simplify right side
311,874.06x = 72,577,825,105.02 - Step 5: Solve for x
x = 72,577,825,105.02/311,874.06 - Step 6: Final answer
x = 232,715.17
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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.