Finding the Fourth Proportional to 202,151.80, 303,227.70 and 139,943.80
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Solution
The fourth proportional to 202,151.80, 303,227.70 and 139,943.80 is: 209,915.70
Step by Step Solution
- Step 1: Write the proportion equation
202,151.80 : 303,227.70 = 139,943.80 : x - Step 2: Convert to fraction form
202,151.80/303,227.70 = 139,943.80/x - Step 3: Cross multiply
202,151.80x = 303,227.70 × 139,943.80 - Step 4: Simplify right side
202,151.80x = 42,434,836,603.26 - Step 5: Solve for x
x = 42,434,836,603.26/202,151.80 - Step 6: Final answer
x = 209,915.70
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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.