Finding the Fourth Proportional to 202,153.80, 303,230.70 and 139,945.80
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Solution
The fourth proportional to 202,153.80, 303,230.70 and 139,945.80 is: 209,918.70
Step by Step Solution
- Step 1: Write the proportion equation
202,153.80 : 303,230.70 = 139,945.80 : x - Step 2: Convert to fraction form
202,153.80/303,230.70 = 139,945.80/x - Step 3: Cross multiply
202,153.80x = 303,230.70 × 139,945.80 - Step 4: Simplify right side
202,153.80x = 42,435,862,896.06 - Step 5: Solve for x
x = 42,435,862,896.06/202,153.80 - Step 6: Final answer
x = 209,918.70
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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.