Finding the Fourth Proportional to 188,211.27, 259,731.75 and 102,170.21
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Solution
The fourth proportional to 188,211.27, 259,731.75 and 102,170.21 is: 140,994.99
Step by Step Solution
- Step 1: Write the proportion equation
188,211.27 : 259,731.75 = 102,170.21 : x - Step 2: Convert to fraction form
188,211.27/259,731.75 = 102,170.21/x - Step 3: Cross multiply
188,211.27x = 259,731.75 × 102,170.21 - Step 4: Simplify right side
188,211.27x = 26,536,846,142.51 - Step 5: Solve for x
x = 26,536,846,142.51/188,211.27 - Step 6: Final answer
x = 140,994.99
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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.