Finding the Fourth Proportional to 312,083.30, 430,674.99 and 168,843.26
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Solution
The fourth proportional to 312,083.30, 430,674.99 and 168,843.26 is: 233,003.72
Step by Step Solution
- Step 1: Write the proportion equation
312,083.30 : 430,674.99 = 168,843.26 : x - Step 2: Convert to fraction form
312,083.30/430,674.99 = 168,843.26/x - Step 3: Cross multiply
312,083.30x = 430,674.99 × 168,843.26 - Step 4: Simplify right side
312,083.30x = 72,716,569,312.07 - Step 5: Solve for x
x = 72,716,569,312.07/312,083.30 - Step 6: Final answer
x = 233,003.72
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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.