Finding the Fourth Proportional to 298,917.75, 412,485.84 and 168,114.99
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Solution
The fourth proportional to 298,917.75, 412,485.84 and 168,114.99 is: 231,987.07
Step by Step Solution
- Step 1: Write the proportion equation
298,917.75 : 412,485.84 = 168,114.99 : x - Step 2: Convert to fraction form
298,917.75/412,485.84 = 168,114.99/x - Step 3: Cross multiply
298,917.75x = 412,485.84 × 168,114.99 - Step 4: Simplify right side
298,917.75x = 69,345,052,866.74 - Step 5: Solve for x
x = 69,345,052,866.74/298,917.75 - Step 6: Final answer
x = 231,987.07
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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.