Finding the Fourth Proportional to 378,343.85, 522,118.08 and 208,584.05
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Solution
The fourth proportional to 378,343.85, 522,118.08 and 208,584.05 is: 287,847.95
Step by Step Solution
- Step 1: Write the proportion equation
378,343.85 : 522,118.08 = 208,584.05 : x - Step 2: Convert to fraction form
378,343.85/522,118.08 = 208,584.05/x - Step 3: Cross multiply
378,343.85x = 522,118.08 × 208,584.05 - Step 4: Simplify right side
378,343.85x = 108,905,501,877.87 - Step 5: Solve for x
x = 108,905,501,877.87/378,343.85 - Step 6: Final answer
x = 287,847.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.