Finding the Fourth Proportional to 189,368.87, 261,328.86 and 104,485.94
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Solution
The fourth proportional to 189,368.87, 261,328.86 and 104,485.94 is: 144,190.50
Step by Step Solution
- Step 1: Write the proportion equation
189,368.87 : 261,328.86 = 104,485.94 : x - Step 2: Convert to fraction form
189,368.87/261,328.86 = 104,485.94/x - Step 3: Cross multiply
189,368.87x = 261,328.86 × 104,485.94 - Step 4: Simplify right side
189,368.87x = 27,305,191,586.23 - Step 5: Solve for x
x = 27,305,191,586.23/189,368.87 - Step 6: Final answer
x = 144,190.50
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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.