Finding the Fourth Proportional to 207,154.36, 285,894.95 and 126,629.02
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Solution
The fourth proportional to 207,154.36, 285,894.95 and 126,629.02 is: 174,761.45
Step by Step Solution
- Step 1: Write the proportion equation
207,154.36 : 285,894.95 = 126,629.02 : x - Step 2: Convert to fraction form
207,154.36/285,894.95 = 126,629.02/x - Step 3: Cross multiply
207,154.36x = 285,894.95 × 126,629.02 - Step 4: Simplify right side
207,154.36x = 36,202,595,278.83 - Step 5: Solve for x
x = 36,202,595,278.83/207,154.36 - Step 6: Final answer
x = 174,761.45
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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.