Finding the Third Proportional to 78,516 and 163,080
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Solution
The third proportional to 78,516 and 163,080 is: 338,721.87
Step by Step Solution
- Step 1: Write the proportion equation
78,516 : 163,080 = 163,080 : x - Step 2: Convert to fraction form
78,516/163,080 = 163,080/x - Step 3: Cross multiply
78,516x = 163,080 × 163,080 - Step 4: Simplify right side
78,516x = 26,595,086,400 - Step 5: Solve for x
x = 26,595,086,400/78,516 - Step 6: Final answer
x = 338,721.87
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Why These Related Problems?
These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.