Finding the Fourth Proportional to 363,490.93, 545,197.51 and 126,838.09
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Solution
The fourth proportional to 363,490.93, 545,197.51 and 126,838.09 is: 190,243.57
Step by Step Solution
- Step 1: Write the proportion equation
363,490.93 : 545,197.51 = 126,838.09 : x - Step 2: Convert to fraction form
363,490.93/545,197.51 = 126,838.09/x - Step 3: Cross multiply
363,490.93x = 545,197.51 × 126,838.09 - Step 4: Simplify right side
363,490.93x = 69,151,810,841.16 - Step 5: Solve for x
x = 69,151,810,841.16/363,490.93 - Step 6: Final answer
x = 190,243.57
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.