Finding the Fourth Proportional to 202,431.80, 303,647.70 and 109,119.80
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Solution
The fourth proportional to 202,431.80, 303,647.70 and 109,119.80 is: 163,679.70
Step by Step Solution
- Step 1: Write the proportion equation
202,431.80 : 303,647.70 = 109,119.80 : x - Step 2: Convert to fraction form
202,431.80/303,647.70 = 109,119.80/x - Step 3: Cross multiply
202,431.80x = 303,647.70 × 109,119.80 - Step 4: Simplify right side
202,431.80x = 33,133,976,294.46 - Step 5: Solve for x
x = 33,133,976,294.46/202,431.80 - Step 6: Final answer
x = 163,679.70
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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.