Finding the Fourth Proportional to 216,208.41, 298,381.49 and 120,715.08
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Solution
The fourth proportional to 216,208.41, 298,381.49 and 120,715.08 is: 166,594.56
Step by Step Solution
- Step 1: Write the proportion equation
216,208.41 : 298,381.49 = 120,715.08 : x - Step 2: Convert to fraction form
216,208.41/298,381.49 = 120,715.08/x - Step 3: Cross multiply
216,208.41x = 298,381.49 × 120,715.08 - Step 4: Simplify right side
216,208.41x = 36,019,145,435.87 - Step 5: Solve for x
x = 36,019,145,435.87/216,208.41 - Step 6: Final answer
x = 166,594.56
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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.