Finding the Fourth Proportional to 209,212.07, 313,806.86 and 122,706.09
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Solution
The fourth proportional to 209,212.07, 313,806.86 and 122,706.09 is: 184,052.54
Step by Step Solution
- Step 1: Write the proportion equation
209,212.07 : 313,806.86 = 122,706.09 : x - Step 2: Convert to fraction form
209,212.07/313,806.86 = 122,706.09/x - Step 3: Cross multiply
209,212.07x = 313,806.86 × 122,706.09 - Step 4: Simplify right side
209,212.07x = 38,506,012,652.39 - Step 5: Solve for x
x = 38,506,012,652.39/209,212.07 - Step 6: Final answer
x = 184,052.54
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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.