Finding the Fourth Proportional to 202,949.20, 304,510.20 and 128,126.80
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Solution
The fourth proportional to 202,949.20, 304,510.20 and 128,126.80 is: 192,244.75
Step by Step Solution
- Step 1: Write the proportion equation
202,949.20 : 304,510.20 = 128,126.80 : x - Step 2: Convert to fraction form
202,949.20/304,510.20 = 128,126.80/x - Step 3: Cross multiply
202,949.20x = 304,510.20 × 128,126.80 - Step 4: Simplify right side
202,949.20x = 39,015,917,493.36 - Step 5: Solve for x
x = 39,015,917,493.36/202,949.20 - Step 6: Final answer
x = 192,244.75
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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.