Finding the Third Proportional to 78,220.13 and 170,715.75
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Solution
The third proportional to 78,220.13 and 170,715.75 is: 372,587.84
Step by Step Solution
- Step 1: Write the proportion equation
78,220.13 : 170,715.75 = 170,715.75 : x - Step 2: Convert to fraction form
78,220.13/170,715.75 = 170,715.75/x - Step 3: Cross multiply
78,220.13x = 170,715.75 × 170,715.75 - Step 4: Simplify right side
78,220.13x = 29,143,867,298.06 - Step 5: Solve for x
x = 29,143,867,298.06/78,220.13 - Step 6: Final answer
x = 372,587.84
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1.5x scale
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.