Finding the Fourth Proportional to 276,637.05, 381,755.37 and 155,779.80
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Solution
The fourth proportional to 276,637.05, 381,755.37 and 155,779.80 is: 214,974.01
Step by Step Solution
- Step 1: Write the proportion equation
276,637.05 : 381,755.37 = 155,779.80 : x - Step 2: Convert to fraction form
276,637.05/381,755.37 = 155,779.80/x - Step 3: Cross multiply
276,637.05x = 381,755.37 × 155,779.80 - Step 4: Simplify right side
276,637.05x = 59,469,775,187.53 - Step 5: Solve for x
x = 59,469,775,187.53/276,637.05 - Step 6: Final answer
x = 214,974.01
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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.