Finding the Fourth Proportional to 189,217.22, 261,110.39 and 107,534.79
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Solution
The fourth proportional to 189,217.22, 261,110.39 and 107,534.79 is: 148,392.68
Step by Step Solution
- Step 1: Write the proportion equation
189,217.22 : 261,110.39 = 107,534.79 : x - Step 2: Convert to fraction form
189,217.22/261,110.39 = 107,534.79/x - Step 3: Cross multiply
189,217.22x = 261,110.39 × 107,534.79 - Step 4: Simplify right side
189,217.22x = 28,078,450,417.79 - Step 5: Solve for x
x = 28,078,450,417.79/189,217.22 - Step 6: Final answer
x = 148,392.68
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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.