Finding the Fourth Proportional to 219,415.20, 329,122.80 and 194,920.80
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Solution
The fourth proportional to 219,415.20, 329,122.80 and 194,920.80 is: 292,381.20
Step by Step Solution
- Step 1: Write the proportion equation
219,415.20 : 329,122.80 = 194,920.80 : x - Step 2: Convert to fraction form
219,415.20/329,122.80 = 194,920.80/x - Step 3: Cross multiply
219,415.20x = 329,122.80 × 194,920.80 - Step 4: Simplify right side
219,415.20x = 64,152,879,474.24 - Step 5: Solve for x
x = 64,152,879,474.24/219,415.20 - Step 6: Final answer
x = 292,381.20
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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.