Finding the Third Proportional to 74,638.13 and 156,189.94
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Solution
The third proportional to 74,638.13 and 156,189.94 is: 326,847.66
Step by Step Solution
- Step 1: Write the proportion equation
74,638.13 : 156,189.94 = 156,189.94 : x - Step 2: Convert to fraction form
74,638.13/156,189.94 = 156,189.94/x - Step 3: Cross multiply
74,638.13x = 156,189.94 × 156,189.94 - Step 4: Simplify right side
74,638.13x = 24,395,296,576.25 - Step 5: Solve for x
x = 24,395,296,576.25/74,638.13 - Step 6: Final answer
x = 326,847.66
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Why These Related Problems?
These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.