Finding the Fourth Proportional to 303,578.20, 455,367.30 and 214,931.80
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Solution
The fourth proportional to 303,578.20, 455,367.30 and 214,931.80 is: 322,397.70
Step by Step Solution
- Step 1: Write the proportion equation
303,578.20 : 455,367.30 = 214,931.80 : x - Step 2: Convert to fraction form
303,578.20/455,367.30 = 214,931.80/x - Step 3: Cross multiply
303,578.20x = 455,367.30 × 214,931.80 - Step 4: Simplify right side
303,578.20x = 97,872,913,450.14 - Step 5: Solve for x
x = 97,872,913,450.14/303,578.20 - Step 6: Final answer
x = 322,397.70
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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.