Finding the Fourth Proportional to 188,378.67, 259,968.11 and 107,832.09
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Solution
The fourth proportional to 188,378.67, 259,968.11 and 107,832.09 is: 148,811.46
Step by Step Solution
- Step 1: Write the proportion equation
188,378.67 : 259,968.11 = 107,832.09 : x - Step 2: Convert to fraction form
188,378.67/259,968.11 = 107,832.09/x - Step 3: Cross multiply
188,378.67x = 259,968.11 × 107,832.09 - Step 4: Simplify right side
188,378.67x = 28,032,904,095.49 - Step 5: Solve for x
x = 28,032,904,095.49/188,378.67 - Step 6: Final answer
x = 148,811.46
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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.