Finding the Fourth Proportional to 205,542.40, 308,313.60 and 149,117.80
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Solution
The fourth proportional to 205,542.40, 308,313.60 and 149,117.80 is: 223,676.70
Step by Step Solution
- Step 1: Write the proportion equation
205,542.40 : 308,313.60 = 149,117.80 : x - Step 2: Convert to fraction form
205,542.40/308,313.60 = 149,117.80/x - Step 3: Cross multiply
205,542.40x = 308,313.60 × 149,117.80 - Step 4: Simplify right side
205,542.40x = 45,975,045,742.08 - Step 5: Solve for x
x = 45,975,045,742.08/205,542.40 - Step 6: Final answer
x = 223,676.70
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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.