Finding the Fourth Proportional to 216,025.22, 298,129.20 and 120,534.05
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Solution
The fourth proportional to 216,025.22, 298,129.20 and 120,534.05 is: 166,345.02
Step by Step Solution
- Step 1: Write the proportion equation
216,025.22 : 298,129.20 = 120,534.05 : x - Step 2: Convert to fraction form
216,025.22/298,129.20 = 120,534.05/x - Step 3: Cross multiply
216,025.22x = 298,129.20 × 120,534.05 - Step 4: Simplify right side
216,025.22x = 35,934,719,899.26 - Step 5: Solve for x
x = 35,934,719,899.26/216,025.22 - Step 6: Final answer
x = 166,345.02
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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.