Finding the Fourth Proportional to 213,051.20, 294,010.36 and 117,557.87
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Solution
The fourth proportional to 213,051.20, 294,010.36 and 117,557.87 is: 162,229.70
Step by Step Solution
- Step 1: Write the proportion equation
213,051.20 : 294,010.36 = 117,557.87 : x - Step 2: Convert to fraction form
213,051.20/294,010.36 = 117,557.87/x - Step 3: Cross multiply
213,051.20x = 294,010.36 × 117,557.87 - Step 4: Simplify right side
213,051.20x = 34,563,231,679.53 - Step 5: Solve for x
x = 34,563,231,679.53/213,051.20 - Step 6: Final answer
x = 162,229.70
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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.