Finding the Fourth Proportional to 135,297.20, 202,945.80 and 131,409.20
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Solution
The fourth proportional to 135,297.20, 202,945.80 and 131,409.20 is: 197,113.80
Step by Step Solution
- Step 1: Write the proportion equation
135,297.20 : 202,945.80 = 131,409.20 : x - Step 2: Convert to fraction form
135,297.20/202,945.80 = 131,409.20/x - Step 3: Cross multiply
135,297.20x = 202,945.80 × 131,409.20 - Step 4: Simplify right side
135,297.20x = 26,668,945,221.36 - Step 5: Solve for x
x = 26,668,945,221.36/135,297.20 - Step 6: Final answer
x = 197,113.80
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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.