Finding the Fourth Proportional to 216,419.80, 324,629.70 and 68,675.80
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Solution
The fourth proportional to 216,419.80, 324,629.70 and 68,675.80 is: 103,013.70
Step by Step Solution
- Step 1: Write the proportion equation
216,419.80 : 324,629.70 = 68,675.80 : x - Step 2: Convert to fraction form
216,419.80/324,629.70 = 68,675.80/x - Step 3: Cross multiply
216,419.80x = 324,629.70 × 68,675.80 - Step 4: Simplify right side
216,419.80x = 22,294,204,351.26 - Step 5: Solve for x
x = 22,294,204,351.26/216,419.80 - Step 6: Final answer
x = 103,013.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.