Finding the Fourth Proportional to 216,120.08, 298,218.21 and 120,630.80
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Solution
The fourth proportional to 216,120.08, 298,218.21 and 120,630.80 is: 166,455.15
Step by Step Solution
- Step 1: Write the proportion equation
216,120.08 : 298,218.21 = 120,630.80 : x - Step 2: Convert to fraction form
216,120.08/298,218.21 = 120,630.80/x - Step 3: Cross multiply
216,120.08x = 298,218.21 × 120,630.80 - Step 4: Simplify right side
216,120.08x = 35,974,301,540.05 - Step 5: Solve for x
x = 35,974,301,540.05/216,120.08 - Step 6: Final answer
x = 166,455.15
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.