Finding the Third Proportional to 74,200 and 174,979
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Solution
The third proportional to 74,200 and 174,979 is: 412,636.80
Step by Step Solution
- Step 1: Write the proportion equation
74,200 : 174,979 = 174,979 : x - Step 2: Convert to fraction form
74,200/174,979 = 174,979/x - Step 3: Cross multiply
74,200x = 174,979 × 174,979 - Step 4: Simplify right side
74,200x = 30,617,650,441 - Step 5: Solve for x
x = 30,617,650,441/74,200 - Step 6: Final answer
x = 412,636.80
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Why These Related Problems?
These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.