Finding the Fourth Proportional to 272,695.80, 409,043.70 and 202,711.80
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Solution
The fourth proportional to 272,695.80, 409,043.70 and 202,711.80 is: 304,067.70
Step by Step Solution
- Step 1: Write the proportion equation
272,695.80 : 409,043.70 = 202,711.80 : x - Step 2: Convert to fraction form
272,695.80/409,043.70 = 202,711.80/x - Step 3: Cross multiply
272,695.80x = 409,043.70 × 202,711.80 - Step 4: Simplify right side
272,695.80x = 82,917,984,705.66 - Step 5: Solve for x
x = 82,917,984,705.66/272,695.80 - Step 6: Final answer
x = 304,067.70
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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.