Finding the Fourth Proportional to 201,992.24, 278,749.19 and 111,349.68
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Solution
The fourth proportional to 201,992.24, 278,749.19 and 111,349.68 is: 153,662.50
Step by Step Solution
- Step 1: Write the proportion equation
201,992.24 : 278,749.19 = 111,349.68 : x - Step 2: Convert to fraction form
201,992.24/278,749.19 = 111,349.68/x - Step 3: Cross multiply
201,992.24x = 278,749.19 × 111,349.68 - Step 4: Simplify right side
201,992.24x = 31,038,632,550.01 - Step 5: Solve for x
x = 31,038,632,550.01/201,992.24 - Step 6: Final answer
x = 153,662.50
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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.