Finding the Third Proportional to 86,661.21 and 189,271.09
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Solution
The third proportional to 86,661.21 and 189,271.09 is: 413,374.62
Step by Step Solution
- Step 1: Write the proportion equation
86,661.21 : 189,271.09 = 189,271.09 : x - Step 2: Convert to fraction form
86,661.21/189,271.09 = 189,271.09/x - Step 3: Cross multiply
86,661.21x = 189,271.09 × 189,271.09 - Step 4: Simplify right side
86,661.21x = 35,823,545,450.64 - Step 5: Solve for x
x = 35,823,545,450.64/86,661.21 - Step 6: Final answer
x = 413,374.62
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Why These Related Problems?
These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.