Finding the Fourth Proportional to 378,211.20, 566,625.60 and 307,708.80
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Solution
The fourth proportional to 378,211.20, 566,625.60 and 307,708.80 is: 461,000.85
Step by Step Solution
- Step 1: Write the proportion equation
378,211.20 : 566,625.60 = 307,708.80 : x - Step 2: Convert to fraction form
378,211.20/566,625.60 = 307,708.80/x - Step 3: Cross multiply
378,211.20x = 566,625.60 × 307,708.80 - Step 4: Simplify right side
378,211.20x = 174,355,683,425.28 - Step 5: Solve for x
x = 174,355,683,425.28/378,211.20 - Step 6: Final answer
x = 461,000.85
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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.