Finding the Fourth Proportional to 219,425.80, 329,138.70 and 202,145.80
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Solution
The fourth proportional to 219,425.80, 329,138.70 and 202,145.80 is: 303,218.70
Step by Step Solution
- Step 1: Write the proportion equation
219,425.80 : 329,138.70 = 202,145.80 : x - Step 2: Convert to fraction form
219,425.80/329,138.70 = 202,145.80/x - Step 3: Cross multiply
219,425.80x = 329,138.70 × 202,145.80 - Step 4: Simplify right side
219,425.80x = 66,534,005,822.46 - Step 5: Solve for x
x = 66,534,005,822.46/219,425.80 - Step 6: Final answer
x = 303,218.70
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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.