Finding the Fourth Proportional to 189,318.74, 261,261.26 and 104,438.84
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Solution
The fourth proportional to 189,318.74, 261,261.26 and 104,438.84 is: 144,126.37
Step by Step Solution
- Step 1: Write the proportion equation
189,318.74 : 261,261.26 = 104,438.84 : x - Step 2: Convert to fraction form
189,318.74/261,261.26 = 104,438.84/x - Step 3: Cross multiply
189,318.74x = 261,261.26 × 104,438.84 - Step 4: Simplify right side
189,318.74x = 27,285,821,102.84 - Step 5: Solve for x
x = 27,285,821,102.84/189,318.74 - Step 6: Final answer
x = 144,126.37
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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.