Finding the Fourth Proportional to 402,316.20, 603,863.10 and 202,861.80
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Solution
The fourth proportional to 402,316.20, 603,863.10 and 202,861.80 is: 304,488.75
Step by Step Solution
- Step 1: Write the proportion equation
402,316.20 : 603,863.10 = 202,861.80 : x - Step 2: Convert to fraction form
402,316.20/603,863.10 = 202,861.80/x - Step 3: Cross multiply
402,316.20x = 603,863.10 × 202,861.80 - Step 4: Simplify right side
402,316.20x = 122,500,755,419.58 - Step 5: Solve for x
x = 122,500,755,419.58/402,316.20 - Step 6: Final answer
x = 304,488.75
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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.