Finding the Fourth Proportional to 265,872.80, 398,809.20 and 202,887.20
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Solution
The fourth proportional to 265,872.80, 398,809.20 and 202,887.20 is: 304,330.80
Step by Step Solution
- Step 1: Write the proportion equation
265,872.80 : 398,809.20 = 202,887.20 : x - Step 2: Convert to fraction form
265,872.80/398,809.20 = 202,887.20/x - Step 3: Cross multiply
265,872.80x = 398,809.20 × 202,887.20 - Step 4: Simplify right side
265,872.80x = 80,913,281,922.24 - Step 5: Solve for x
x = 80,913,281,922.24/265,872.80 - Step 6: Final answer
x = 304,330.80
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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.