Finding the Fourth Proportional to 189,489.32, 261,479.56 and 107,795.84
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Solution
The fourth proportional to 189,489.32, 261,479.56 and 107,795.84 is: 148,749.32
Step by Step Solution
- Step 1: Write the proportion equation
189,489.32 : 261,479.56 = 107,795.84 : x - Step 2: Convert to fraction form
189,489.32/261,479.56 = 107,795.84/x - Step 3: Cross multiply
189,489.32x = 261,479.56 × 107,795.84 - Step 4: Simplify right side
189,489.32x = 28,186,407,718.91 - Step 5: Solve for x
x = 28,186,407,718.91/189,489.32 - Step 6: Final answer
x = 148,749.32
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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.