Finding the Fourth Proportional to 209,175.67, 312,988.33 and 124,981.65
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Solution
The fourth proportional to 209,175.67, 312,988.33 and 124,981.65 is: 187,009.31
Step by Step Solution
- Step 1: Write the proportion equation
209,175.67 : 312,988.33 = 124,981.65 : x - Step 2: Convert to fraction form
209,175.67/312,988.33 = 124,981.65/x - Step 3: Cross multiply
209,175.67x = 312,988.33 × 124,981.65 - Step 4: Simplify right side
209,175.67x = 39,117,797,914.14 - Step 5: Solve for x
x = 39,117,797,914.14/209,175.67 - Step 6: Final answer
x = 187,009.31
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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.