Finding the Fourth Proportional to 378,246.48, 521,982.56 and 208,480.62
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Solution
The fourth proportional to 378,246.48, 521,982.56 and 208,480.62 is: 287,704.59
Step by Step Solution
- Step 1: Write the proportion equation
378,246.48 : 521,982.56 = 208,480.62 : x - Step 2: Convert to fraction form
378,246.48/521,982.56 = 208,480.62/x - Step 3: Cross multiply
378,246.48x = 521,982.56 × 208,480.62 - Step 4: Simplify right side
378,246.48x = 108,823,247,737.99 - Step 5: Solve for x
x = 108,823,247,737.99/378,246.48 - Step 6: Final answer
x = 287,704.59
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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.