Finding the Fourth Proportional to 378,125.61, 521,792.73 and 234,883.05
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Solution
The fourth proportional to 378,125.61, 521,792.73 and 234,883.05 is: 324,125.81
Step by Step Solution
- Step 1: Write the proportion equation
378,125.61 : 521,792.73 = 234,883.05 : x - Step 2: Convert to fraction form
378,125.61/521,792.73 = 234,883.05/x - Step 3: Cross multiply
378,125.61x = 521,792.73 × 234,883.05 - Step 4: Simplify right side
378,125.61x = 122,560,267,890.23 - Step 5: Solve for x
x = 122,560,267,890.23/378,125.61 - Step 6: Final answer
x = 324,125.81
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1.5x scale
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.