Finding the Fourth Proportional to 207,543.56, 286,415.87 and 126,969.62
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Solution
The fourth proportional to 207,543.56, 286,415.87 and 126,969.62 is: 175,221.59
Step by Step Solution
- Step 1: Write the proportion equation
207,543.56 : 286,415.87 = 126,969.62 : x - Step 2: Convert to fraction form
207,543.56/286,415.87 = 126,969.62/x - Step 3: Cross multiply
207,543.56x = 286,415.87 × 126,969.62 - Step 4: Simplify right side
207,543.56x = 36,366,112,108.94 - Step 5: Solve for x
x = 36,366,112,108.94/207,543.56 - Step 6: Final answer
x = 175,221.59
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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.