Finding the Third Proportional to 74,778.19 and 161,296.31
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Solution
The third proportional to 74,778.19 and 161,296.31 is: 347,915.63
Step by Step Solution
- Step 1: Write the proportion equation
74,778.19 : 161,296.31 = 161,296.31 : x - Step 2: Convert to fraction form
74,778.19/161,296.31 = 161,296.31/x - Step 3: Cross multiply
74,778.19x = 161,296.31 × 161,296.31 - Step 4: Simplify right side
74,778.19x = 26,016,500,426.10 - Step 5: Solve for x
x = 26,016,500,426.10/74,778.19 - Step 6: Final answer
x = 347,915.63
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Why These Related Problems?
These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.