Finding the Fourth Proportional to 306,472.80, 459,838.80 and 194,239.20
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Solution
The fourth proportional to 306,472.80, 459,838.80 and 194,239.20 is: 291,440.94
Step by Step Solution
- Step 1: Write the proportion equation
306,472.80 : 459,838.80 = 194,239.20 : x - Step 2: Convert to fraction form
306,472.80/459,838.80 = 194,239.20/x - Step 3: Cross multiply
306,472.80x = 459,838.80 × 194,239.20 - Step 4: Simplify right side
306,472.80x = 89,318,720,640.96 - Step 5: Solve for x
x = 89,318,720,640.96/306,472.80 - Step 6: Final answer
x = 291,440.94
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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.