Finding the Fourth Proportional to 189,365.70, 261,419.35 and 117,768.79
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Solution
The fourth proportional to 189,365.70, 261,419.35 and 117,768.79 is: 162,579.82
Step by Step Solution
- Step 1: Write the proportion equation
189,365.70 : 261,419.35 = 117,768.79 : x - Step 2: Convert to fraction form
189,365.70/261,419.35 = 117,768.79/x - Step 3: Cross multiply
189,365.70x = 261,419.35 × 117,768.79 - Step 4: Simplify right side
189,365.70x = 30,787,040,532.09 - Step 5: Solve for x
x = 30,787,040,532.09/189,365.70 - Step 6: Final answer
x = 162,579.82
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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.