Finding the Fourth Proportional to 216,889.74, 324,091.40 and 165,312.99
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Solution
The fourth proportional to 216,889.74, 324,091.40 and 165,312.99 is: 247,021.91
Step by Step Solution
- Step 1: Write the proportion equation
216,889.74 : 324,091.40 = 165,312.99 : x - Step 2: Convert to fraction form
216,889.74/324,091.40 = 165,312.99/x - Step 3: Cross multiply
216,889.74x = 324,091.40 × 165,312.99 - Step 4: Simplify right side
216,889.74x = 53,576,517,540.72 - Step 5: Solve for x
x = 53,576,517,540.72/216,889.74 - Step 6: Final answer
x = 247,021.91
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.