Finding the Fourth Proportional to 313,121.92, 469,060.80 and 172,531.84
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Solution
The fourth proportional to 313,121.92, 469,060.80 and 172,531.84 is: 258,454.99
Step by Step Solution
- Step 1: Write the proportion equation
313,121.92 : 469,060.80 = 172,531.84 : x - Step 2: Convert to fraction form
313,121.92/469,060.80 = 172,531.84/x - Step 3: Cross multiply
313,121.92x = 469,060.80 × 172,531.84 - Step 4: Simplify right side
313,121.92x = 80,927,922,895.87 - Step 5: Solve for x
x = 80,927,922,895.87/313,121.92 - Step 6: Final answer
x = 258,454.99
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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.