Finding the Fourth Proportional to 189,747.55, 261,972.39 and 118,232.65
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Solution
The fourth proportional to 189,747.55, 261,972.39 and 118,232.65 is: 163,236.31
Step by Step Solution
- Step 1: Write the proportion equation
189,747.55 : 261,972.39 = 118,232.65 : x - Step 2: Convert to fraction form
189,747.55/261,972.39 = 118,232.65/x - Step 3: Cross multiply
189,747.55x = 261,972.39 × 118,232.65 - Step 4: Simplify right side
189,747.55x = 30,973,689,896.53 - Step 5: Solve for x
x = 30,973,689,896.53/189,747.55 - Step 6: Final answer
x = 163,236.31
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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.