Finding the Fourth Proportional to 187,367.77, 258,560.97 and 106,821.23
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Solution
The fourth proportional to 187,367.77, 258,560.97 and 106,821.23 is: 147,409.56
Step by Step Solution
- Step 1: Write the proportion equation
187,367.77 : 258,560.97 = 106,821.23 : x - Step 2: Convert to fraction form
187,367.77/258,560.97 = 106,821.23/x - Step 3: Cross multiply
187,367.77x = 258,560.97 × 106,821.23 - Step 4: Simplify right side
187,367.77x = 27,619,800,845.39 - Step 5: Solve for x
x = 27,619,800,845.39/187,367.77 - Step 6: Final answer
x = 147,409.56
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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.