Finding the Fourth Proportional to 209,173.67, 312,985.33 and 124,979.65
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Solution
The fourth proportional to 209,173.67, 312,985.33 and 124,979.65 is: 187,006.31
Step by Step Solution
- Step 1: Write the proportion equation
209,173.67 : 312,985.33 = 124,979.65 : x - Step 2: Convert to fraction form
209,173.67/312,985.33 = 124,979.65/x - Step 3: Cross multiply
209,173.67x = 312,985.33 × 124,979.65 - Step 4: Simplify right side
209,173.67x = 39,116,796,998.53 - Step 5: Solve for x
x = 39,116,796,998.53/209,173.67 - Step 6: Final answer
x = 187,006.31
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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.